231516512323 has 16 divisors (see below), whose sum is σ = 238793456160. Its totient is φ = 224320441600.

The previous prime is 231516512281. The next prime is 231516512387. The reversal of 231516512323 is 323215615132.

It is a cyclic number.

It is not a de Polignac number, because 231516512323 - 2¹⁷ = 231516381251 is a prime.

It is a super-3 number, since 3×231516512323³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231516512023) 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, 5829393 + ... + 5868973.

It is an arithmetic number, because the mean of its divisors is an integer number (14924591010).

Almost surely, 2^231516512323 is an apocalyptic number.

231516512323 is a deficient number, since it is larger than the sum of its proper divisors (7276943837).

231516512323 is a wasteful number, since it uses less digits than its factorization.

231516512323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40598.

The product of its digits is 32400, while the sum is 34.

The spelling of 231516512323 in words is "two hundred thirty-one billion, five hundred sixteen million, five hundred twelve thousand, three hundred twenty-three".