111313011321 has 32 divisors (see below), whose sum is σ = 168599923200. Its totient is φ = 72550817280.

The previous prime is 111313011311. The next prime is 111313011401. The reversal of 111313011321 is 123110313111.

111313011321 is a `hidden beast` number, since 1 + 11 + 31 + 301 + 1 + 321 = 666.

It is not a de Polignac number, because 111313011321 - 2⁷ = 111313011193 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111313011294 and 111313011303.

It is not an unprimeable number, because it can be changed into a prime (111313011311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1131691 + ... + 1226111.

It is an arithmetic number, because the mean of its divisors is an integer number (5268747600).

Almost surely, 2^111313011321 is an apocalyptic number.

It is an amenable number.

111313011321 is a deficient number, since it is larger than the sum of its proper divisors (57286911879).

111313011321 is an equidigital number, since it uses as much as digits as its factorization.

111313011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95406 (or 95400 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111313011321 its reverse (123110313111), we get a palindrome (234423324432).

The spelling of 111313011321 in words is "one hundred eleven billion, three hundred thirteen million, eleven thousand, three hundred twenty-one".