111031131320 has 32 divisors (see below), whose sum is σ = 249874873920. Its totient is φ = 44402705280.

The previous prime is 111031131311. The next prime is 111031131349. The reversal of 111031131320 is 23131130111.

It is a congruent number.

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, 118667 + ... + 485946.

It is an arithmetic number, because the mean of its divisors is an integer number (7808589810).

Almost surely, 2^111031131320 is an apocalyptic number.

111031131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111031131320 is an abundant number, since it is smaller than the sum of its proper divisors (138843742600).

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

111031131320 is a wasteful number, since it uses less digits than its factorization.

111031131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609215 (or 609211 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 111031131320 its reverse (23131130111), we get a palindrome (134162261431).

The spelling of 111031131320 in words is "one hundred eleven billion, thirty-one million, one hundred thirty-one thousand, three hundred twenty".