231203013233173 has 2 divisors, whose sum is σ = 231203013233174. Its totient is φ = 231203013233172.

The previous prime is 231203013233113. The next prime is 231203013233177. The reversal of 231203013233173 is 371332310302132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229512592006929 + 1690421226244 = 15149673^2 + 1300162^2 .

It is a cyclic number.

It is not a de Polignac number, because 231203013233173 - 2⁹ = 231203013232661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231203013233177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115601506616586 + 115601506616587.

It is an arithmetic number, because the mean of its divisors is an integer number (115601506616587).

Almost surely, 2^{231203013233173} is an apocalyptic number.

It is an amenable number.

231203013233173 is a deficient number, since it is larger than the sum of its proper divisors (1).

231203013233173 is an equidigital number, since it uses as much as digits as its factorization.

231203013233173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 34.

The spelling of 231203013233173 in words is "two hundred thirty-one trillion, two hundred three billion, thirteen million, two hundred thirty-three thousand, one hundred seventy-three".