31103023113313 has 2 divisors, whose sum is σ = 31103023113314. Its totient is φ = 31103023113312.

The previous prime is 31103023113277. The next prime is 31103023113413. The reversal of 31103023113313 is 31331132030113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26498938834944 + 4604084278369 = 5147712^2 + 2145713^2 .

It is a cyclic number.

It is not a de Polignac number, because 31103023113313 - 2²⁵ = 31102989558881 is a prime.

It is not a weakly prime, because it can be changed into another prime (31103023113413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551511556656 + 15551511556657.

It is an arithmetic number, because the mean of its divisors is an integer number (15551511556657).

Almost surely, 2^{31103023113313} is an apocalyptic number.

It is an amenable number.

31103023113313 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103023113313 is an equidigital number, since it uses as much as digits as its factorization.

31103023113313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 31103023113313 its reverse (31331132030113), we get a palindrome (62434155143426).

The spelling of 31103023113313 in words is "thirty-one trillion, one hundred three billion, twenty-three million, one hundred thirteen thousand, three hundred thirteen".