21411432023 has 2 divisors, whose sum is σ = 21411432024. Its totient is φ = 21411432022.

The previous prime is 21411431963. The next prime is 21411432037. The reversal of 21411432023 is 32023411412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21411432023 - 2³² = 17116464727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21411432023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21411432073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705716011 + 10705716012.

It is an arithmetic number, because the mean of its divisors is an integer number (10705716012).

Almost surely, 2^21411432023 is an apocalyptic number.

21411432023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21411432023 is an equidigital number, since it uses as much as digits as its factorization.

21411432023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21411432023 its reverse (32023411412), we get a palindrome (53434843435).

The spelling of 21411432023 in words is "twenty-one billion, four hundred eleven million, four hundred thirty-two thousand, twenty-three".