231320122332 has 48 divisors (see below), whose sum is σ = 589452820992. Its totient is φ = 70172948160.

The previous prime is 231320122331. The next prime is 231320122349. The reversal of 231320122332 is 233221023132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231320122331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10431328 + ... + 10453479.

It is an arithmetic number, because the mean of its divisors is an integer number (12280267104).

Almost surely, 2^231320122332 is an apocalyptic number.

It is an amenable number.

231320122332 is an abundant number, since it is smaller than the sum of its proper divisors (358132698660).

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

231320122332 is a wasteful number, since it uses less digits than its factorization.

231320122332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20884898 (or 20884896 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231320122332 its reverse (233221023132), we get a palindrome (464541145464).

The spelling of 231320122332 in words is "two hundred thirty-one billion, three hundred twenty million, one hundred twenty-two thousand, three hundred thirty-two".