23010331021 has 2 divisors, whose sum is σ = 23010331022. Its totient is φ = 23010331020.

The previous prime is 23010330997. The next prime is 23010331037. The reversal of 23010331021 is 12013301032.

It is an a-pointer prime, because the next prime (23010331037) can be obtained adding 23010331021 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22887453796 + 122877225 = 151286^2 + 11085^2 .

It is a cyclic number.

It is not a de Polignac number, because 23010331021 - 2²¹ = 23008233869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23010330986 and 23010331004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23010331051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11505165510 + 11505165511.

It is an arithmetic number, because the mean of its divisors is an integer number (11505165511).

Almost surely, 2^23010331021 is an apocalyptic number.

It is an amenable number.

23010331021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23010331021 is an equidigital number, since it uses as much as digits as its factorization.

23010331021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23010331021 its reverse (12013301032), we get a palindrome (35023632053).

The spelling of 23010331021 in words is "twenty-three billion, ten million, three hundred thirty-one thousand, twenty-one".