31323432313 has 8 divisors (see below), whose sum is σ = 31768735680. Its totient is φ = 30878243760.

The previous prime is 31323432311. The next prime is 31323432317.

31323432313 is nontrivially palindromic in base 10.

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 31323432313 - 2¹ = 31323432311 is a prime.

It is a super-3 number, since 3×31323432313³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31323432311) 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, 626058 + ... + 674236.

It is an arithmetic number, because the mean of its divisors is an integer number (3971091960).

Almost surely, 2^31323432313 is an apocalyptic number.

It is an amenable number.

31323432313 is a deficient number, since it is larger than the sum of its proper divisors (445303367).

31323432313 is an equidigital number, since it uses as much as digits as its factorization.

31323432313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57407.

The product of its digits is 11664, while the sum is 28.

The spelling of 31323432313 in words is "thirty-one billion, three hundred twenty-three million, four hundred thirty-two thousand, three hundred thirteen".