204312101239 has 2 divisors, whose sum is σ = 204312101240. Its totient is φ = 204312101238.

The previous prime is 204312101209. The next prime is 204312101263. The reversal of 204312101239 is 932101213402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204312101239 - 2⁵ = 204312101207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204312101209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102156050619 + 102156050620.

It is an arithmetic number, because the mean of its divisors is an integer number (102156050620).

Almost surely, 2^204312101239 is an apocalyptic number.

204312101239 is a deficient number, since it is larger than the sum of its proper divisors (1).

204312101239 is an equidigital number, since it uses as much as digits as its factorization.

204312101239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 204312101239 in words is "two hundred four billion, three hundred twelve million, one hundred one thousand, two hundred thirty-nine".