232330021181 has 2 divisors, whose sum is σ = 232330021182. Its totient is φ = 232330021180.

The previous prime is 232330021177. The next prime is 232330021249. The reversal of 232330021181 is 181120033232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228014845081 + 4315176100 = 477509^2 + 65690^2 .

It is a cyclic number.

It is not a de Polignac number, because 232330021181 - 2² = 232330021177 is a prime.

It is a super-2 number, since 2×232330021181² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 232330021181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232330021111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116165010590 + 116165010591.

It is an arithmetic number, because the mean of its divisors is an integer number (116165010591).

Almost surely, 2^232330021181 is an apocalyptic number.

It is an amenable number.

232330021181 is a deficient number, since it is larger than the sum of its proper divisors (1).

232330021181 is an equidigital number, since it uses as much as digits as its factorization.

232330021181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 232330021181 in words is "two hundred thirty-two billion, three hundred thirty million, twenty-one thousand, one hundred eighty-one".