313536321031 has 2 divisors, whose sum is σ = 313536321032. Its totient is φ = 313536321030.

The previous prime is 313536321023. The next prime is 313536321041. The reversal of 313536321031 is 130123635313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313536321031 - 2³ = 313536321023 is a prime.

It is a super-2 number, since 2×313536321031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313536320984 and 313536321002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313536321041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156768160515 + 156768160516.

It is an arithmetic number, because the mean of its divisors is an integer number (156768160516).

Almost surely, 2^313536321031 is an apocalyptic number.

313536321031 is a deficient number, since it is larger than the sum of its proper divisors (1).

313536321031 is an equidigital number, since it uses as much as digits as its factorization.

313536321031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 31.

Adding to 313536321031 its reverse (130123635313), we get a palindrome (443659956344).

The spelling of 313536321031 in words is "three hundred thirteen billion, five hundred thirty-six million, three hundred twenty-one thousand, thirty-one".