231305541551316 has 48 divisors (see below), whose sum is σ = 634956388577280. Its totient is φ = 72566444407680.

The previous prime is 231305541551311. The next prime is 231305541551369. The reversal of 231305541551316 is 613155145503132.

231305541551316 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 0 + 55 + 41 + 551 + 3 + 1 + 6 = 666.

It is a super-2 number, since 2×231305541551316² (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 (231305541551311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62991703380 + ... + 62991707051.

It is an arithmetic number, because the mean of its divisors is an integer number (13228258095360).

Almost surely, 2^{231305541551316} is an apocalyptic number.

It is an amenable number.

231305541551316 is an abundant number, since it is smaller than the sum of its proper divisors (403650847025964).

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

231305541551316 is a wasteful number, since it uses less digits than its factorization.

231305541551316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125983410461 (or 125983410453 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 231305541551316 in words is "two hundred thirty-one trillion, three hundred five billion, five hundred forty-one million, five hundred fifty-one thousand, three hundred sixteen".