21132042023 has 2 divisors, whose sum is σ = 21132042024. Its totient is φ = 21132042022.

The previous prime is 21132041999. The next prime is 21132042047. The reversal of 21132042023 is 32024023112.

It is a balanced prime because it is at equal distance from previous prime (21132041999) and next prime (21132042047).

It is a cyclic number.

It is not a de Polignac number, because 21132042023 - 2⁸ = 21132041767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21132041986 and 21132042004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21132042073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566021011 + 10566021012.

It is an arithmetic number, because the mean of its divisors is an integer number (10566021012).

Almost surely, 2^21132042023 is an apocalyptic number.

21132042023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132042023 is an equidigital number, since it uses as much as digits as its factorization.

21132042023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21132042023 its reverse (32024023112), we get a palindrome (53156065135).

The spelling of 21132042023 in words is "twenty-one billion, one hundred thirty-two million, forty-two thousand, twenty-three".