23431344012015 has 48 divisors (see below), whose sum is σ = 38747428181280. Its totient is φ = 12084021698560.

The previous prime is 23431344011983. The next prime is 23431344012061. The reversal of 23431344012015 is 51021044313432.

It is not a de Polignac number, because 23431344012015 - 2⁵ = 23431344011983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6361051 + ... + 9344819.

It is an arithmetic number, because the mean of its divisors is an integer number (807238087110).

Almost surely, 2^{23431344012015} is an apocalyptic number.

23431344012015 is a deficient number, since it is larger than the sum of its proper divisors (15316084169265).

23431344012015 is a wasteful number, since it uses less digits than its factorization.

23431344012015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984044 (or 2983931 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 23431344012015 its reverse (51021044313432), we get a palindrome (74452388325447).

The spelling of 23431344012015 in words is "twenty-three trillion, four hundred thirty-one billion, three hundred forty-four million, twelve thousand, fifteen".