231257297376 has 384 divisors, whose sum is σ = 812794752000. Its totient is φ = 62490673152.

The previous prime is 231257297321. The next prime is 231257297407. The reversal of 231257297376 is 673792752132.

It is a happy number.

231257297376 is a `hidden beast` number, since 2 + 31 + 2 + 572 + 9 + 7 + 37 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 88366020 + ... + 88368636.

It is an arithmetic number, because the mean of its divisors is an integer number (2116653000).

Almost surely, 2^231257297376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231257297376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406397376000).

231257297376 is an abundant number, since it is smaller than the sum of its proper divisors (581537454624).

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

231257297376 is a wasteful number, since it uses less digits than its factorization.

231257297376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431 (or 3417 counting only the distinct ones).

The product of its digits is 6667920, while the sum is 54.

The spelling of 231257297376 in words is "two hundred thirty-one billion, two hundred fifty-seven million, two hundred ninety-seven thousand, three hundred seventy-six".