111213131010 has 64 divisors (see below), whose sum is σ = 272663027712. Its totient is φ = 29018114496.

The previous prime is 111213130993. The next prime is 111213131021. The reversal of 111213131010 is 10131312111.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 31 ways as a sum of consecutive naturals, for example, 6905187 + ... + 6921273.

It is an arithmetic number, because the mean of its divisors is an integer number (4260359808).

Almost surely, 2^111213131010 is an apocalyptic number.

111213131010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111213131010 is an abundant number, since it is smaller than the sum of its proper divisors (161449896702).

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

111213131010 is a wasteful number, since it uses less digits than its factorization.

111213131010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21047.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 111213131010 its reverse (10131312111), we get a palindrome (121344443121).

The spelling of 111213131010 in words is "one hundred eleven billion, two hundred thirteen million, one hundred thirty-one thousand, ten".