23230001021 has 2 divisors, whose sum is σ = 23230001022. Its totient is φ = 23230001020.

The previous prime is 23230001009. The next prime is 23230001057. The reversal of 23230001021 is 12010003232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21546129796 + 1683871225 = 146786^2 + 41035^2 .

It is a cyclic number.

It is not a de Polignac number, because 23230001021 - 2⁶ = 23230000957 is a prime.

It is a super-2 number, since 2×23230001021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23230000987 and 23230001005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23230001321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615000510 + 11615000511.

It is an arithmetic number, because the mean of its divisors is an integer number (11615000511).

Almost surely, 2^23230001021 is an apocalyptic number.

It is an amenable number.

23230001021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23230001021 is an equidigital number, since it uses as much as digits as its factorization.

23230001021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23230001021 its reverse (12010003232), we get a palindrome (35240004253).

The spelling of 23230001021 in words is "twenty-three billion, two hundred thirty million, one thousand, twenty-one".