21021210032023 has 2 divisors, whose sum is σ = 21021210032024. Its totient is φ = 21021210032022.

The previous prime is 21021210032003. The next prime is 21021210032027. The reversal of 21021210032023 is 32023001212012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21021210032023 - 2¹³ = 21021210023831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21021210032027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510605016011 + 10510605016012.

It is an arithmetic number, because the mean of its divisors is an integer number (10510605016012).

Almost surely, 2^{21021210032023} is an apocalyptic number.

21021210032023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21021210032023 is an equidigital number, since it uses as much as digits as its factorization.

21021210032023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21021210032023 its reverse (32023001212012), we get a palindrome (53044211244035).

The spelling of 21021210032023 in words is "twenty-one trillion, twenty-one billion, two hundred ten million, thirty-two thousand, twenty-three".