21233012023 has 2 divisors, whose sum is σ = 21233012024. Its totient is φ = 21233012022.

The previous prime is 21233011967. The next prime is 21233012027. The reversal of 21233012023 is 32021033212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21233012023 - 2⁹ = 21233011511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21233012027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616506011 + 10616506012.

It is an arithmetic number, because the mean of its divisors is an integer number (10616506012).

Almost surely, 2^21233012023 is an apocalyptic number.

21233012023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233012023 is an equidigital number, since it uses as much as digits as its factorization.

21233012023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21233012023 its reverse (32021033212), we get a palindrome (53254045235).

The spelling of 21233012023 in words is "twenty-one billion, two hundred thirty-three million, twelve thousand, twenty-three".