23210112010021 has 2 divisors, whose sum is σ = 23210112010022. Its totient is φ = 23210112010020.

The previous prime is 23210112009991. The next prime is 23210112010097. The reversal of 23210112010021 is 12001021101232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21542361890625 + 1667750119396 = 4641375^2 + 1291414^2 .

It is a cyclic number.

It is not a de Polignac number, because 23210112010021 - 2¹³ = 23210112001829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23210112009977 and 23210112010004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23210112010321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605056005010 + 11605056005011.

It is an arithmetic number, because the mean of its divisors is an integer number (11605056005011).

Almost surely, 2^{23210112010021} is an apocalyptic number.

It is an amenable number.

23210112010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23210112010021 is an equidigital number, since it uses as much as digits as its factorization.

23210112010021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 23210112010021 its reverse (12001021101232), we get a palindrome (35211133111253).

The spelling of 23210112010021 in words is "twenty-three trillion, two hundred ten billion, one hundred twelve million, ten thousand, twenty-one".