13231032331 has 8 divisors (see below), whose sum is σ = 14434860528. Its totient is φ = 12027372000.

The previous prime is 13231032319. The next prime is 13231032349. The reversal of 13231032331 is 13323013231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13231032331 - 2³³ = 4641097739 is a prime.

It is a super-2 number, since 2×13231032331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13231036331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168961 + ... + 234541.

It is an arithmetic number, because the mean of its divisors is an integer number (1804357566).

Almost surely, 2^13231032331 is an apocalyptic number.

13231032331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13231032331 is a deficient number, since it is larger than the sum of its proper divisors (1203828197).

13231032331 is a wasteful number, since it uses less digits than its factorization.

13231032331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83933.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13231032331 its reverse (13323013231), we get a palindrome (26554045562).

The spelling of 13231032331 in words is "thirteen billion, two hundred thirty-one million, thirty-two thousand, three hundred thirty-one".