31300103202139 has 2 divisors, whose sum is σ = 31300103202140. Its totient is φ = 31300103202138.

The previous prime is 31300103202127. The next prime is 31300103202197. The reversal of 31300103202139 is 93120230100313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31300103202139 is a prime.

It is not a weakly prime, because it can be changed into another prime (31300103202119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650051601069 + 15650051601070.

It is an arithmetic number, because the mean of its divisors is an integer number (15650051601070).

Almost surely, 2^{31300103202139} is an apocalyptic number.

31300103202139 is a deficient number, since it is larger than the sum of its proper divisors (1).

31300103202139 is an equidigital number, since it uses as much as digits as its factorization.

31300103202139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 31300103202139 in words is "thirty-one trillion, three hundred billion, one hundred three million, two hundred two thousand, one hundred thirty-nine".