204311002139 has 2 divisors, whose sum is σ = 204311002140. Its totient is φ = 204311002138.

The previous prime is 204311002111. The next prime is 204311002169. The reversal of 204311002139 is 931200113402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204311002139 - 2²⁰ = 204309953563 is a prime.

It is not a weakly prime, because it can be changed into another prime (204311002169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102155501069 + 102155501070.

It is an arithmetic number, because the mean of its divisors is an integer number (102155501070).

Almost surely, 2^204311002139 is an apocalyptic number.

204311002139 is a deficient number, since it is larger than the sum of its proper divisors (1).

204311002139 is an equidigital number, since it uses as much as digits as its factorization.

204311002139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 204311002139 in words is "two hundred four billion, three hundred eleven million, two thousand, one hundred thirty-nine".