31356104405539 has 2 divisors, whose sum is σ = 31356104405540. Its totient is φ = 31356104405538.

The previous prime is 31356104405501. The next prime is 31356104405567. The reversal of 31356104405539 is 93550440165313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31356104405539 - 2³⁷ = 31218665452067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31356104405492 and 31356104405501.

It is not a weakly prime, because it can be changed into another prime (31356104405579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15678052202769 + 15678052202770.

It is an arithmetic number, because the mean of its divisors is an integer number (15678052202770).

Almost surely, 2^{31356104405539} is an apocalyptic number.

31356104405539 is a deficient number, since it is larger than the sum of its proper divisors (1).

31356104405539 is an equidigital number, since it uses as much as digits as its factorization.

31356104405539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 49.

The spelling of 31356104405539 in words is "thirty-one trillion, three hundred fifty-six billion, one hundred four million, four hundred five thousand, five hundred thirty-nine".