313241320031 has 4 divisors (see below), whose sum is σ = 313244099064. Its totient is φ = 313238541000.

The previous prime is 313241320019. The next prime is 313241320037. The reversal of 313241320031 is 130023142313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130023142313 = 859 ⋅151365707.

It is a cyclic number.

It is not a de Polignac number, because 313241320031 - 2¹⁸ = 313241057887 is a prime.

It is a super-2 number, since 2×313241320031² (a number of 24 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 = 313241319979 and 313241320006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313241320037) 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, 1212965 + ... + 1448366.

It is an arithmetic number, because the mean of its divisors is an integer number (78311024766).

Almost surely, 2^313241320031 is an apocalyptic number.

313241320031 is a deficient number, since it is larger than the sum of its proper divisors (2779033).

313241320031 is a wasteful number, since it uses less digits than its factorization.

313241320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779032.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 313241320031 its reverse (130023142313), we get a palindrome (443264462344).

The spelling of 313241320031 in words is "three hundred thirteen billion, two hundred forty-one million, three hundred twenty thousand, thirty-one".