21000023232323 has 2 divisors, whose sum is σ = 21000023232324. Its totient is φ = 21000023232322.

The previous prime is 21000023232317. The next prime is 21000023232329. The reversal of 21000023232323 is 32323232000012.

It is a balanced prime because it is at equal distance from previous prime (21000023232317) and next prime (21000023232329).

It is a cyclic number.

It is not a de Polignac number, because 21000023232323 - 2⁶ = 21000023232259 is a prime.

It is not a weakly prime, because it can be changed into another prime (21000023232329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500011616161 + 10500011616162.

It is an arithmetic number, because the mean of its divisors is an integer number (10500011616162).

Almost surely, 2^{21000023232323} is an apocalyptic number.

21000023232323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000023232323 is an equidigital number, since it uses as much as digits as its factorization.

21000023232323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 21000023232323 its reverse (32323232000012), we get a palindrome (53323255232335).

The spelling of 21000023232323 in words is "twenty-one trillion, twenty-three million, two hundred thirty-two thousand, three hundred twenty-three".