231374428285 has 64 divisors (see below), whose sum is σ = 384813563904. Its totient is φ = 128843654400.

The previous prime is 231374428213. The next prime is 231374428289. The reversal of 231374428285 is 582824473132.

It is not a de Polignac number, because 231374428285 - 2¹¹ = 231374426237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231374428289) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 590469 + ... + 900778.

It is an arithmetic number, because the mean of its divisors is an integer number (6012711936).

Almost surely, 2^231374428285 is an apocalyptic number.

It is an amenable number.

231374428285 is a deficient number, since it is larger than the sum of its proper divisors (153439135619).

231374428285 is a wasteful number, since it uses less digits than its factorization.

231374428285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491314.

The product of its digits is 2580480, while the sum is 49.

The spelling of 231374428285 in words is "two hundred thirty-one billion, three hundred seventy-four million, four hundred twenty-eight thousand, two hundred eighty-five".