232102030021 has 2 divisors, whose sum is σ = 232102030022. Its totient is φ = 232102030020.

The previous prime is 232102030019. The next prime is 232102030037. The reversal of 232102030021 is 120030201232.

It is an a-pointer prime, because the next prime (232102030037) can be obtained adding 232102030021 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229236033796 + 2865996225 = 478786^2 + 53535^2 .

It is a cyclic number.

It is not a de Polignac number, because 232102030021 - 2¹ = 232102030019 is a prime.

Together with 232102030019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 232102029977 and 232102030004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232102030051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116051015010 + 116051015011.

It is an arithmetic number, because the mean of its divisors is an integer number (116051015011).

Almost surely, 2^232102030021 is an apocalyptic number.

It is an amenable number.

232102030021 is a deficient number, since it is larger than the sum of its proper divisors (1).

232102030021 is an equidigital number, since it uses as much as digits as its factorization.

232102030021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 232102030021 its reverse (120030201232), we get a palindrome (352132231253).

The spelling of 232102030021 in words is "two hundred thirty-two billion, one hundred two million, thirty thousand, twenty-one".