313000203231 has 12 divisors (see below), whose sum is σ = 457834334880. Its totient is φ = 206025449760.

The previous prime is 313000203221. The next prime is 313000203251. The reversal of 313000203231 is 132302000313.

It is not a de Polignac number, because 313000203231 - 2¹¹ = 313000201183 is a prime.

It is a super-2 number, since 2×313000203231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313000203211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220111950 + ... + 220113371.

It is an arithmetic number, because the mean of its divisors is an integer number (38152861240).

Almost surely, 2^313000203231 is an apocalyptic number.

313000203231 is a deficient number, since it is larger than the sum of its proper divisors (144834131649).

313000203231 is a wasteful number, since it uses less digits than its factorization.

313000203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440225406 (or 440225403 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 313000203231 its reverse (132302000313), we get a palindrome (445302203544).

The spelling of 313000203231 in words is "three hundred thirteen billion, two hundred three thousand, two hundred thirty-one".