231320023330 has 192 divisors, whose sum is σ = 492234744960. Its totient is φ = 77970816000.

The previous prime is 231320023313. The next prime is 231320023367. The reversal of 231320023330 is 33320023132.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 95 ways as a sum of consecutive naturals, for example, 394071297 + ... + 394071883.

It is an arithmetic number, because the mean of its divisors is an integer number (2563722630).

Almost surely, 2^231320023330 is an apocalyptic number.

231320023330 is an abundant number, since it is smaller than the sum of its proper divisors (260914721630).

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

231320023330 is a wasteful number, since it uses less digits than its factorization.

231320023330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 966 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 231320023330 its reverse (33320023132), we get a palindrome (264640046462).

The spelling of 231320023330 in words is "two hundred thirty-one billion, three hundred twenty million, twenty-three thousand, three hundred thirty".