231550355402340 has 48 divisors (see below), whose sum is σ = 698213379369408. Its totient is φ = 56997010560384.

The previous prime is 231550355402339. The next prime is 231550355402347. The reversal of 231550355402340 is 43204553055132.

It is a junction number, because it is equal to n+sod(n) for n = 231550355402292 and 231550355402301.

It is not an unprimeable number, because it can be changed into a prime (231550355402347) 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, 148429714222 + ... + 148429715781.

It is an arithmetic number, because the mean of its divisors is an integer number (14546112070196).

Almost surely, 2^{231550355402340} is an apocalyptic number.

231550355402340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231550355402340 is an abundant number, since it is smaller than the sum of its proper divisors (466663023967068).

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

231550355402340 is a wasteful number, since it uses less digits than its factorization.

231550355402340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296859430028 (or 296859430026 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 231550355402340 in words is "two hundred thirty-one trillion, five hundred fifty billion, three hundred fifty-five million, four hundred two thousand, three hundred forty".