313031023 has 16 divisors (see below), whose sum is σ = 338738400. Its totient is φ = 288299520.

The previous prime is 313031021. The next prime is 313031027. The reversal of 313031023 is 320130313.

It is a cyclic number.

It is not a de Polignac number, because 313031023 - 2¹ = 313031021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313030988 and 313031006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313031021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302515 + ... + 303547.

It is an arithmetic number, because the mean of its divisors is an integer number (21171150).

Almost surely, 2^313031023 is an apocalyptic number.

313031023 is a deficient number, since it is larger than the sum of its proper divisors (25707377).

313031023 is a wasteful number, since it uses less digits than its factorization.

313031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 313031023 is about 17692.6827530479. The cubic root of 313031023 is about 678.9885648157.

Adding to 313031023 its reverse (320130313), we get a palindrome (633161336).

The spelling of 313031023 in words is "three hundred thirteen million, thirty-one thousand, twenty-three".