231379362820 has 24 divisors (see below), whose sum is σ = 485958491928. Its totient is φ = 92539968000.

The previous prime is 231379362763. The next prime is 231379362827. The reversal of 231379362820 is 28263973132.

It can be written as a sum of positive squares in 4 ways, for example, as 427993344 + 230951369476 = 20688^2 + 480574^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (231379362827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574101 + ... + 890140.

It is an arithmetic number, because the mean of its divisors is an integer number (20248270497).

Almost surely, 2^231379362820 is an apocalyptic number.

231379362820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231379362820 is an abundant number, since it is smaller than the sum of its proper divisors (254579129108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231379362820 is a wasteful number, since it uses less digits than its factorization.

231379362820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472151 (or 1472149 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 231379362820 in words is "two hundred thirty-one billion, three hundred seventy-nine million, three hundred sixty-two thousand, eight hundred twenty".