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131101101010 = 251123459111287
BaseRepresentation
bin111101000011000111…
…1000000101111010010
3110112101122211222020201
41322012033000233102
54121443340213020
6140121011325414
712320543654245
oct1720617005722
9415348758221
10131101101010
1150666176670
12214a95b086a
13c49404c6a9
1464b981325c
153624865a0a
hex1e863c0bd2

131101101010 has 64 divisors (see below), whose sum is σ = 268710027264. Its totient is φ = 45586411200.

The previous prime is 131101100983. The next prime is 131101101049. The reversal of 131101101010 is 10101101131.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11609587 + ... + 11620873.

It is an arithmetic number, because the mean of its divisors is an integer number (4198594176).

Almost surely, 2131101101010 is an apocalyptic number.

131101101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131101101010 is an abundant number, since it is smaller than the sum of its proper divisors (137608926254).

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

131101101010 is a wasteful number, since it uses less digits than its factorization.

131101101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15919.

The product of its (nonzero) digits is 3, while the sum is 10.

Adding to 131101101010 its reverse (10101101131), we get a palindrome (141202202141).

The spelling of 131101101010 in words is "one hundred thirty-one billion, one hundred one million, one hundred one thousand, ten".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 1265 2530 4591 9182 11287 22574 22955 45910 50501 56435 101002 105593 112870 124157 211186 248314 252505 259601 505010 519202 527965 620785 1055930 1161523 1241570 1298005 2323046 2596010 2855611 5711222 5807615 11615230 14278055 28556110 51818617 103637234 259093085 518186170 570004787 1140009574 1191828191 2383656382 2850023935 5700047870 5959140955 11918281910 13110110101 26220220202 65550550505 131101101010