231583900280 has 16 divisors (see below), whose sum is σ = 521063775720. Its totient is φ = 92633560096.

The previous prime is 231583900277. The next prime is 231583900291. The reversal of 231583900280 is 82009385132.

It is a super-2 number, since 2×231583900280² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2894798714 + ... + 2894798793.

Almost surely, 2^231583900280 is an apocalyptic number.

231583900280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231583900280 is an abundant number, since it is smaller than the sum of its proper divisors (289479875440).

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

231583900280 is a wasteful number, since it uses less digits than its factorization.

231583900280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789597518 (or 5789597514 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 231583900280 in words is "two hundred thirty-one billion, five hundred eighty-three million, nine hundred thousand, two hundred eighty".