131000112100 has 72 divisors (see below), whose sum is σ = 333967874688. Its totient is φ = 43972060800.

The previous prime is 131000112083. The next prime is 131000112149. The reversal of 131000112100 is 1211000131.

It is a super-2 number, since 2×131000112100² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4566124 + ... + 4594723.

It is an arithmetic number, because the mean of its divisors is an integer number (4638442704).

Almost surely, 2^131000112100 is an apocalyptic number.

131000112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000112100 is an abundant number, since it is smaller than the sum of its proper divisors (202967762588).

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

131000112100 is a wasteful number, since it uses less digits than its factorization.

131000112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9160885 (or 9160878 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 131000112100 its reverse (1211000131), we get a palindrome (132211112231).

The spelling of 131000112100 in words is "one hundred thirty-one billion, one hundred twelve thousand, one hundred".