11232320031 has 32 divisors (see below), whose sum is σ = 16969962240. Its totient is φ = 7341328800.

The previous prime is 11232320023. The next prime is 11232320059. The reversal of 11232320031 is 13002323211.

11232320031 is a `hidden beast` number, since 112 + 323 + 200 + 31 = 666.

It is not a de Polignac number, because 11232320031 - 2³ = 11232320023 is a prime.

It is a super-2 number, since 2×11232320031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11232319986 and 11232320013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232320081) 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, 274441 + ... + 312701.

It is an arithmetic number, because the mean of its divisors is an integer number (530311320).

Almost surely, 2^11232320031 is an apocalyptic number.

11232320031 is a deficient number, since it is larger than the sum of its proper divisors (5737642209).

11232320031 is a wasteful number, since it uses less digits than its factorization.

11232320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38484 (or 38478 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11232320031 its reverse (13002323211), we get a palindrome (24234643242).

The spelling of 11232320031 in words is "eleven billion, two hundred thirty-two million, three hundred twenty thousand, thirty-one".