13312303031 has 4 divisors (see below), whose sum is σ = 13321659552. Its totient is φ = 13302946512.

The previous prime is 13312303021. The next prime is 13312303111. The reversal of 13312303031 is 13030321331.

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 13312303031 - 2¹⁸ = 13312040887 is a prime.

It is a super-4 number, since 4×13312303031⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13312302994 and 13312303012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312303021) 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, 4676126 + ... + 4678971.

It is an arithmetic number, because the mean of its divisors is an integer number (3330414888).

Almost surely, 2^13312303031 is an apocalyptic number.

13312303031 is a deficient number, since it is larger than the sum of its proper divisors (9356521).

13312303031 is an equidigital number, since it uses as much as digits as its factorization.

13312303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9356520.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 13312303031 its reverse (13030321331), we get a palindrome (26342624362).

The spelling of 13312303031 in words is "thirteen billion, three hundred twelve million, three hundred three thousand, thirty-one".