13232320031 has 4 divisors (see below), whose sum is σ = 15122651472. Its totient is φ = 11341988592.

The previous prime is 13232319973. The next prime is 13232320091. The reversal of 13232320031 is 13002323231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13232320031 - 2²² = 13228125727 is a prime.

It is a super-2 number, since 2×13232320031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13232319985 and 13232320012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232320091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945165710 + ... + 945165723.

It is an arithmetic number, because the mean of its divisors is an integer number (3780662868).

Almost surely, 2^13232320031 is an apocalyptic number.

13232320031 is a deficient number, since it is larger than the sum of its proper divisors (1890331441).

13232320031 is an equidigital number, since it uses as much as digits as its factorization.

13232320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890331440.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13232320031 its reverse (13002323231), we get a palindrome (26234643262).

It can be divided in two parts, 132323200 and 31, that added together give a palindrome (132323231).

The spelling of 13232320031 in words is "thirteen billion, two hundred thirty-two million, three hundred twenty thousand, thirty-one".