231502543315 has 32 divisors (see below), whose sum is σ = 300825169920. Its totient is φ = 170429733504.

The previous prime is 231502543291. The next prime is 231502543319. The reversal of 231502543315 is 513345205132.

It is a cyclic number.

It is not a de Polignac number, because 231502543315 - 2²³ = 231494154707 is a prime.

It is a super-2 number, since 2×231502543315² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231502543319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2079354 + ... + 2187856.

It is an arithmetic number, because the mean of its divisors is an integer number (9400786560).

Almost surely, 2^231502543315 is an apocalyptic number.

231502543315 is a deficient number, since it is larger than the sum of its proper divisors (69322626605).

231502543315 is a wasteful number, since it uses less digits than its factorization.

231502543315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109171.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 231502543315 its reverse (513345205132), we get a palindrome (744847748447).

The spelling of 231502543315 in words is "two hundred thirty-one billion, five hundred two million, five hundred forty-three thousand, three hundred fifteen".