131102111112 has 48 divisors (see below), whose sum is σ = 381266346960. Its totient is φ = 37457745696.

The previous prime is 131102111099. The next prime is 131102111117. The reversal of 131102111112 is 211111201131.

It is a junction number, because it is equal to n+sod(n) for n = 131102111091 and 131102111100.

It is not an unprimeable number, because it can be changed into a prime (131102111117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55739518 + ... + 55741869.

It is an arithmetic number, because the mean of its divisors is an integer number (7943048895).

Almost surely, 2^131102111112 is an apocalyptic number.

131102111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131102111112 is an abundant number, since it is smaller than the sum of its proper divisors (250164235848).

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

131102111112 is a wasteful number, since it uses less digits than its factorization.

131102111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111481410 (or 111481399 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 131102111112 its reverse (211111201131), we get a palindrome (342213312243).

The spelling of 131102111112 in words is "one hundred thirty-one billion, one hundred two million, one hundred eleven thousand, one hundred twelve".