31312101130139 has 2 divisors, whose sum is σ = 31312101130140. Its totient is φ = 31312101130138.

The previous prime is 31312101130043. The next prime is 31312101130147. The reversal of 31312101130139 is 93103110121313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31312101130139 - 2¹² = 31312101126043 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312101139139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656050565069 + 15656050565070.

It is an arithmetic number, because the mean of its divisors is an integer number (15656050565070).

Almost surely, 2^{31312101130139} is an apocalyptic number.

31312101130139 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312101130139 is an equidigital number, since it uses as much as digits as its factorization.

31312101130139 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 29.

The spelling of 31312101130139 in words is "thirty-one trillion, three hundred twelve billion, one hundred one million, one hundred thirty thousand, one hundred thirty-nine".