111231302313 has 16 divisors (see below), whose sum is σ = 152404995456. Its totient is φ = 72117317760.

The previous prime is 111231302309. The next prime is 111231302327. The reversal of 111231302313 is 313203132111.

It is a happy number.

It is not a de Polignac number, because 111231302313 - 2² = 111231302309 is a prime.

It is a super-2 number, since 2×111231302313² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111231302313.

It is not an unprimeable number, because it can be changed into a prime (111231302333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1387381 + ... + 1465362.

It is an arithmetic number, because the mean of its divisors is an integer number (9525312216).

Almost surely, 2^111231302313 is an apocalyptic number.

It is an amenable number.

111231302313 is a deficient number, since it is larger than the sum of its proper divisors (41173693143).

111231302313 is a wasteful number, since it uses less digits than its factorization.

111231302313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853104.

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

Adding to 111231302313 its reverse (313203132111), we get a palindrome (424434434424).

The spelling of 111231302313 in words is "one hundred eleven billion, two hundred thirty-one million, three hundred two thousand, three hundred thirteen".