31303311365429 has 2 divisors, whose sum is σ = 31303311365430. Its totient is φ = 31303311365428.

The previous prime is 31303311365419. The next prime is 31303311365453. The reversal of 31303311365429 is 92456311330313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30721412436100 + 581898929329 = 5542690^2 + 762823^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31303311365429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31303311365429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31303311365419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651655682714 + 15651655682715.

It is an arithmetic number, because the mean of its divisors is an integer number (15651655682715).

Almost surely, 2^{31303311365429} is an apocalyptic number.

It is an amenable number.

31303311365429 is a deficient number, since it is larger than the sum of its proper divisors (1).

31303311365429 is an equidigital number, since it uses as much as digits as its factorization.

31303311365429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 44.

The spelling of 31303311365429 in words is "thirty-one trillion, three hundred three billion, three hundred eleven million, three hundred sixty-five thousand, four hundred twenty-nine".