231305541551315 has 64 divisors (see below), whose sum is σ = 350464773980160. Its totient is φ = 142354228947840.

The previous prime is 231305541551311. The next prime is 231305541551369. The reversal of 231305541551315 is 513155145503132.

It is a happy number.

It is not a de Polignac number, because 231305541551315 - 2² = 231305541551311 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 400794254 + ... + 401370956.

It is an arithmetic number, because the mean of its divisors is an integer number (5476012093440).

Almost surely, 2^{231305541551315} is an apocalyptic number.

231305541551315 is a deficient number, since it is larger than the sum of its proper divisors (119159232428845).

231305541551315 is a wasteful number, since it uses less digits than its factorization.

231305541551315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589992.

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 231305541551315 in words is "two hundred thirty-one trillion, three hundred five billion, five hundred forty-one million, five hundred fifty-one thousand, three hundred fifteen".