31103013025129 has 2 divisors, whose sum is σ = 31103013025130. Its totient is φ = 31103013025128.

The previous prime is 31103013025001. The next prime is 31103013025153. The reversal of 31103013025129 is 92152031030113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26723523470400 + 4379489554729 = 5169480^2 + 2092723^2 .

It is a cyclic number.

It is not a de Polignac number, because 31103013025129 - 2⁷ = 31103013025001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31103013025129.

It is not a weakly prime, because it can be changed into another prime (31103013025529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551506512564 + 15551506512565.

It is an arithmetic number, because the mean of its divisors is an integer number (15551506512565).

Almost surely, 2^{31103013025129} is an apocalyptic number.

It is an amenable number.

31103013025129 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103013025129 is an equidigital number, since it uses as much as digits as its factorization.

31103013025129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 31103013025129 in words is "thirty-one trillion, one hundred three billion, thirteen million, twenty-five thousand, one hundred twenty-nine".