31255355042029 has 2 divisors, whose sum is σ = 31255355042030. Its totient is φ = 31255355042028.

The previous prime is 31255355041931. The next prime is 31255355042077. The reversal of 31255355042029 is 92024055355213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16445441868804 + 14809913173225 = 4055298^2 + 3848365^2 .

It is a cyclic number.

It is not a de Polignac number, because 31255355042029 - 2²⁵ = 31255321487597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31255355042029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31255355042099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15627677521014 + 15627677521015.

It is an arithmetic number, because the mean of its divisors is an integer number (15627677521015).

Almost surely, 2^{31255355042029} is an apocalyptic number.

It is an amenable number.

31255355042029 is a deficient number, since it is larger than the sum of its proper divisors (1).

31255355042029 is an equidigital number, since it uses as much as digits as its factorization.

31255355042029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 31255355042029 in words is "thirty-one trillion, two hundred fifty-five billion, three hundred fifty-five million, forty-two thousand, twenty-nine".