232113320021 has 12 divisors (see below), whose sum is σ = 255448298700. Its totient is φ = 210751189440.

The previous prime is 232113319993. The next prime is 232113320059. The reversal of 232113320021 is 120023311232.

It can be written as a sum of positive squares in 2 ways, for example, as 90504103921 + 141609216100 = 300839^2 + 376310^2 .

It is not a de Polignac number, because 232113320021 - 2⁶ = 232113319957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 232113319975 and 232113320002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232113320321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1087706 + ... + 1283483.

It is an arithmetic number, because the mean of its divisors is an integer number (21287358225).

Almost surely, 2^232113320021 is an apocalyptic number.

It is an amenable number.

232113320021 is a deficient number, since it is larger than the sum of its proper divisors (23334978679).

232113320021 is a wasteful number, since it uses less digits than its factorization.

232113320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372020 (or 2372009 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 232113320021 its reverse (120023311232), we get a palindrome (352136631253).

The spelling of 232113320021 in words is "two hundred thirty-two billion, one hundred thirteen million, three hundred twenty thousand, twenty-one".