231739802380 has 48 divisors (see below), whose sum is σ = 495290880000. Its totient is φ = 91062518976.

The previous prime is 231739802369. The next prime is 231739802381. The reversal of 231739802380 is 83208937132.

It is a self number, because there is not a number n which added to its sum of digits gives 231739802380.

It is not an unprimeable number, because it can be changed into a prime (231739802381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54100 + ... + 682939.

It is an arithmetic number, because the mean of its divisors is an integer number (10318560000).

Almost surely, 2^231739802380 is an apocalyptic number.

231739802380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231739802380 is an abundant number, since it is smaller than the sum of its proper divisors (263551077620).

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

231739802380 is a wasteful number, since it uses less digits than its factorization.

231739802380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737326 (or 737324 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 231739802380 in words is "two hundred thirty-one billion, seven hundred thirty-nine million, eight hundred two thousand, three hundred eighty".