231330320430 has 48 divisors (see below), whose sum is σ = 610253218512. Its totient is φ = 56080076800.

The previous prime is 231330320363. The next prime is 231330320447. The reversal of 231330320430 is 34023033132.

It is a happy number.

231330320430 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231330320430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31860051 + ... + 31867310.

It is an arithmetic number, because the mean of its divisors is an integer number (12713608719).

Almost surely, 2^231330320430 is an apocalyptic number.

231330320430 is an abundant number, since it is smaller than the sum of its proper divisors (378922898082).

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

231330320430 is a wasteful number, since it uses less digits than its factorization.

231330320430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63727393 (or 63727382 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 231330320430 its reverse (34023033132), we get a palindrome (265353353562).

The spelling of 231330320430 in words is "two hundred thirty-one billion, three hundred thirty million, three hundred twenty thousand, four hundred thirty".