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131031223310040 = 23354283254944399
BaseRepresentation
bin11101110010110000010101…
…100001010001011011011000
3122011221110111020121012112020
4131302300111201101123120
5114133303421131410130
61142402525112214440
736412456602211104
oct3562602541213330
9564843436535466
10131031223310040
1138829036644089
121284288b69a420
1358162644ac1c1
14244dd332ca904
15102365202ae10
hex772c158516d8

131031223310040 has 64 divisors (see below), whose sum is σ = 393185451456000. Its totient is φ = 34933501191552.

The previous prime is 131031223310027. The next prime is 131031223310087. The reversal of 131031223310040 is 40013322130131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126958240 + ... + 127986159.

It is an arithmetic number, because the mean of its divisors is an integer number (6143522679000).

Almost surely, 2131031223310040 is an apocalyptic number.

131031223310040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131031223310040 is an abundant number, since it is smaller than the sum of its proper divisors (262154228145960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131031223310040 is a wasteful number, since it uses less digits than its factorization.

131031223310040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254948696 (or 254948692 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 131031223310040 its reverse (40013322130131), we get a palindrome (171044545440171).

The spelling of 131031223310040 in words is "one hundred thirty-one trillion, thirty-one billion, two hundred twenty-three million, three hundred ten thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 4283 8566 12849 17132 21415 25698 34264 42830 51396 64245 85660 102792 128490 171320 256980 513960 254944399 509888798 764833197 1019777596 1274721995 1529666394 2039555192 2549443990 3059332788 3824165985 5098887980 6118665576 7648331970 10197775960 15296663940 30593327880 1091926860917 2183853721834 3275780582751 4367707443668 5459634304585 6551561165502 8735414887336 10919268609170 13103122331004 16378902913755 21838537218340 26206244662008 32757805827510 43677074436680 65515611655020 131031223310040