313113302331 has 4 divisors (see below), whose sum is σ = 417484403112. Its totient is φ = 208742201552.

The previous prime is 313113302311. The next prime is 313113302353. The reversal of 313113302331 is 133203311313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133203311313 = 3 ⋅44401103771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313113302331 is a prime.

It is a super-2 number, since 2×313113302331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313113302311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52185550386 + ... + 52185550391.

It is an arithmetic number, because the mean of its divisors is an integer number (104371100778).

Almost surely, 2^313113302331 is an apocalyptic number.

313113302331 is a deficient number, since it is larger than the sum of its proper divisors (104371100781).

313113302331 is a wasteful number, since it uses less digits than its factorization.

313113302331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104371100780.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 313113302331 its reverse (133203311313), we get a palindrome (446316613644).

The spelling of 313113302331 in words is "three hundred thirteen billion, one hundred thirteen million, three hundred two thousand, three hundred thirty-one".