231350919500 has 48 divisors (see below), whose sum is σ = 509906036640. Its totient is φ = 91691352000.

The previous prime is 231350919427. The next prime is 231350919511. The reversal of 231350919500 is 5919053132.

It is a happy 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, 2067986 + ... + 2176985.

It is an arithmetic number, because the mean of its divisors is an integer number (10623042430).

Almost surely, 2^231350919500 is an apocalyptic number.

231350919500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231350919500 is an abundant number, since it is smaller than the sum of its proper divisors (278555117140).

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

231350919500 is a wasteful number, since it uses less digits than its factorization.

231350919500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245099 (or 4245087 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 38.

The spelling of 231350919500 in words is "two hundred thirty-one billion, three hundred fifty million, nine hundred nineteen thousand, five hundred".