23531415231320 has 64 divisors (see below), whose sum is σ = 56063551027680. Its totient is φ = 8858346121216.

The previous prime is 23531415231299. The next prime is 23531415231431. The reversal of 23531415231320 is 2313251413532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10206302 + ... + 12297618.

Almost surely, 2^{23531415231320} is an apocalyptic number.

23531415231320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23531415231320 is an abundant number, since it is smaller than the sum of its proper divisors (32532135796360).

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

23531415231320 is a wasteful number, since it uses less digits than its factorization.

23531415231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107892 (or 2107888 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 23531415231320 its reverse (2313251413532), we get a palindrome (25844666644852).

The spelling of 23531415231320 in words is "twenty-three trillion, five hundred thirty-one billion, four hundred fifteen million, two hundred thirty-one thousand, three hundred twenty".