111331022313 has 64 divisors (see below), whose sum is σ = 184111349760. Its totient is φ = 58456899072.

The previous prime is 111331022293. The next prime is 111331022323. The reversal of 111331022313 is 313220133111.

It is a happy number.

It is not a de Polignac number, because 111331022313 - 2⁸ = 111331022057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 111331022313.

It is not an unprimeable number, because it can be changed into a prime (111331022323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1372381 + ... + 1451237.

It is an arithmetic number, because the mean of its divisors is an integer number (2876739840).

Almost surely, 2^111331022313 is an apocalyptic number.

It is an amenable number.

111331022313 is a deficient number, since it is larger than the sum of its proper divisors (72780327447).

111331022313 is a wasteful number, since it uses less digits than its factorization.

111331022313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79006.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 111331022313 its reverse (313220133111), we get a palindrome (424551155424).

The spelling of 111331022313 in words is "one hundred eleven billion, three hundred thirty-one million, twenty-two thousand, three hundred thirteen".