231708053273 has 2 divisors, whose sum is σ = 231708053274. Its totient is φ = 231708053272.

The previous prime is 231708053231. The next prime is 231708053309. The reversal of 231708053273 is 372350807132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200071027849 + 31637025424 = 447293^2 + 177868^2 .

It is a cyclic number.

It is not a de Polignac number, because 231708053273 - 2¹⁸ = 231707791129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231708053273.

It is not a weakly prime, because it can be changed into another prime (231708053573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115854026636 + 115854026637.

It is an arithmetic number, because the mean of its divisors is an integer number (115854026637).

Almost surely, 2^231708053273 is an apocalyptic number.

It is an amenable number.

231708053273 is a deficient number, since it is larger than the sum of its proper divisors (1).

231708053273 is an equidigital number, since it uses as much as digits as its factorization.

231708053273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 231708053273 in words is "two hundred thirty-one billion, seven hundred eight million, fifty-three thousand, two hundred seventy-three".