231545434430199 has 16 divisors (see below), whose sum is σ = 322151954833152. Its totient is φ = 147651342873408.

The previous prime is 231545434430183. The next prime is 231545434430203. The reversal of 231545434430199 is 991034434545132.

It is not a de Polignac number, because 231545434430199 - 2⁴ = 231545434430183 is a prime.

It is a super-2 number, since 2×231545434430199² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231545434430119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3368019 + ... + 21781515.

It is an arithmetic number, because the mean of its divisors is an integer number (20134497177072).

Almost surely, 2^{231545434430199} is an apocalyptic number.

231545434430199 is a deficient number, since it is larger than the sum of its proper divisors (90606520402953).

231545434430199 is a wasteful number, since it uses less digits than its factorization.

231545434430199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18595766.

The product of its (nonzero) digits is 27993600, while the sum is 57.

The spelling of 231545434430199 in words is "two hundred thirty-one trillion, five hundred forty-five billion, four hundred thirty-four million, four hundred thirty thousand, one hundred ninety-nine".