31013230332113 has 2 divisors, whose sum is σ = 31013230332114. Its totient is φ = 31013230332112.

The previous prime is 31013230332089. The next prime is 31013230332137. The reversal of 31013230332113 is 31123303231013.

It is a balanced prime because it is at equal distance from previous prime (31013230332089) and next prime (31013230332137).

It can be written as a sum of positive squares in only one way, i.e., 22702394678209 + 8310835653904 = 4764703^2 + 2882852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31013230332113 is a prime.

It is not a weakly prime, because it can be changed into another prime (31013230332163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506615166056 + 15506615166057.

It is an arithmetic number, because the mean of its divisors is an integer number (15506615166057).

Almost surely, 2^{31013230332113} is an apocalyptic number.

It is an amenable number.

31013230332113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013230332113 is an equidigital number, since it uses as much as digits as its factorization.

31013230332113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31013230332113 its reverse (31123303231013), we get a palindrome (62136533563126).

The spelling of 31013230332113 in words is "thirty-one trillion, thirteen billion, two hundred thirty million, three hundred thirty-two thousand, one hundred thirteen".