31323440003313 has 64 divisors (see below), whose sum is σ = 43274449612800. Its totient is φ = 20138120301312.

The previous prime is 31323440003309. The next prime is 31323440003327. The reversal of 31323440003313 is 31330004432313.

It is not a de Polignac number, because 31323440003313 - 2² = 31323440003309 is a prime.

It is a super-2 number, since 2×31323440003313² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31323440001313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22389877788 + ... + 22389879186.

It is an arithmetic number, because the mean of its divisors is an integer number (676163275200).

Almost surely, 2^{31323440003313} is an apocalyptic number.

It is an amenable number.

31323440003313 is a deficient number, since it is larger than the sum of its proper divisors (11951009609487).

31323440003313 is a wasteful number, since it uses less digits than its factorization.

31323440003313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886.

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 31323440003313 its reverse (31330004432313), we get a palindrome (62653444435626).

The spelling of 31323440003313 in words is "thirty-one trillion, three hundred twenty-three billion, four hundred forty million, three thousand, three hundred thirteen".