113131001023212 has 96 divisors (see below), whose sum is σ = 281700769342720. Its totient is φ = 35232588195840.

The previous prime is 113131001023147. The next prime is 113131001023223. The reversal of 113131001023212 is 212320100131311.

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, 164949348 + ... + 165633780.

Almost surely, 2^{113131001023212} is an apocalyptic number.

113131001023212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113131001023212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140850384671360).

113131001023212 is an abundant number, since it is smaller than the sum of its proper divisors (168569768319508).

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

113131001023212 is a wasteful number, since it uses less digits than its factorization.

113131001023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694463 (or 694461 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 113131001023212 its reverse (212320100131311), we get a palindrome (325451101154523).

The spelling of 113131001023212 in words is "one hundred thirteen trillion, one hundred thirty-one billion, one million, twenty-three thousand, two hundred twelve".