21032323001 has 2 divisors, whose sum is σ = 21032323002. Its totient is φ = 21032323000.

The previous prime is 21032322977. The next prime is 21032323043. The reversal of 21032323001 is 10032323012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16849338025 + 4182984976 = 129805^2 + 64676^2 .

It is a cyclic number.

It is not a de Polignac number, because 21032323001 - 2⁶ = 21032322937 is a prime.

It is a super-2 number, since 2×21032323001² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21032323601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516161500 + 10516161501.

It is an arithmetic number, because the mean of its divisors is an integer number (10516161501).

Almost surely, 2^21032323001 is an apocalyptic number.

It is an amenable number.

21032323001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032323001 is an equidigital number, since it uses as much as digits as its factorization.

21032323001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21032323001 its reverse (10032323012), we get a palindrome (31064646013).

The spelling of 21032323001 in words is "twenty-one billion, thirty-two million, three hundred twenty-three thousand, one".