231503067320 has 128 divisors (see below), whose sum is σ = 603575884800. Its totient is φ = 78274031616.

The previous prime is 231503067317. The next prime is 231503067329. The reversal of 231503067320 is 23760305132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231503067329) 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, 7671221 + ... + 7701339.

It is an arithmetic number, because the mean of its divisors is an integer number (4715436600).

Almost surely, 2^231503067320 is an apocalyptic number.

231503067320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231503067320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301787942400).

231503067320 is an abundant number, since it is smaller than the sum of its proper divisors (372072817480).

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

231503067320 is a wasteful number, since it uses less digits than its factorization.

231503067320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30517 (or 30513 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 32.

The spelling of 231503067320 in words is "two hundred thirty-one billion, five hundred three million, sixty-seven thousand, three hundred twenty".