231407890939 has 8 divisors (see below), whose sum is σ = 245200417280. Its totient is φ = 217776681000.

The previous prime is 231407890897. The next prime is 231407890993. The reversal of 231407890939 is 939098704132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231407890939 - 2¹⁹ = 231407366651 is a prime.

It is a super-2 number, since 2×231407890939² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231407890939.

It is not an unprimeable number, because it can be changed into a prime (231407890139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40326147 + ... + 40331884.

It is an arithmetic number, because the mean of its divisors is an integer number (30650052160).

Almost surely, 2^231407890939 is an apocalyptic number.

231407890939 is a deficient number, since it is larger than the sum of its proper divisors (13792526341).

231407890939 is a wasteful number, since it uses less digits than its factorization.

231407890939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80658201.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 231407890939 in words is "two hundred thirty-one billion, four hundred seven million, eight hundred ninety thousand, nine hundred thirty-nine".