23030003021 has 2 divisors, whose sum is σ = 23030003022. Its totient is φ = 23030003020.

The previous prime is 23030002997. The next prime is 23030003041. The reversal of 23030003021 is 12030003032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14914515625 + 8115487396 = 122125^2 + 90086^2 .

It is a cyclic number.

It is not a de Polignac number, because 23030003021 - 2²² = 23025808717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23030002987 and 23030003005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23030003041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515001510 + 11515001511.

It is an arithmetic number, because the mean of its divisors is an integer number (11515001511).

Almost surely, 2^23030003021 is an apocalyptic number.

It is an amenable number.

23030003021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23030003021 is an equidigital number, since it uses as much as digits as its factorization.

23030003021 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 14.

Adding to 23030003021 its reverse (12030003032), we get a palindrome (35060006053).

The spelling of 23030003021 in words is "twenty-three billion, thirty million, three thousand, twenty-one".