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131001031112 = 23710123161427
BaseRepresentation
bin111101000000001000…
…1010001100111001000
3110112010200112220011012
41322000101101213020
54121242230443422
6140103034423052
712315220251260
oct1720021214710
9415120486135
10131001031112
1150614737676
122147bb91a88
13c4793b3133
1464aa4047a0
15361ab9a4e2
hex1e804519c8

131001031112 has 32 divisors (see below), whose sum is σ = 283495878720. Its totient is φ = 55587422400.

The previous prime is 131001031097. The next prime is 131001031171. The reversal of 131001031112 is 211130100131.

It is a happy number.

It is a super-2 number, since 2×1310010311122 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11575058 + ... + 11586369.

It is an arithmetic number, because the mean of its divisors is an integer number (8859246210).

Almost surely, 2131001031112 is an apocalyptic number.

It is an amenable number.

131001031112 is an abundant number, since it is smaller than the sum of its proper divisors (152494847608).

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

131001031112 is a wasteful number, since it uses less digits than its factorization.

131001031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23161541 (or 23161537 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 131001031112 its reverse (211130100131), we get a palindrome (342131131243).

The spelling of 131001031112 in words is "one hundred thirty-one billion, one million, thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 101 202 404 707 808 1414 2828 5656 23161427 46322854 92645708 162129989 185291416 324259978 648519956 1297039912 2339304127 4678608254 9357216508 16375128889 18714433016 32750257778 65500515556 131001031112