230311031313 has 48 divisors (see below), whose sum is σ = 358964701760. Its totient is φ = 130872360960.

The previous prime is 230311031311. The next prime is 230311031339. The reversal of 230311031313 is 313130113032.

It is not a de Polignac number, because 230311031313 - 2¹ = 230311031311 is a prime.

It is a super-2 number, since 2×230311031313² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 230311031313.

It is not an unprimeable number, because it can be changed into a prime (230311031311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 496881 + ... + 841137.

Almost surely, 2^230311031313 is an apocalyptic number.

It is an amenable number.

230311031313 is a deficient number, since it is larger than the sum of its proper divisors (128653670447).

230311031313 is a wasteful number, since it uses less digits than its factorization.

230311031313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344398 (or 344387 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 230311031313 its reverse (313130113032), we get a palindrome (543441144345).

The spelling of 230311031313 in words is "two hundred thirty billion, three hundred eleven million, thirty-one thousand, three hundred thirteen".