21052932443623 has 2 divisors, whose sum is σ = 21052932443624. Its totient is φ = 21052932443622.

The previous prime is 21052932443533. The next prime is 21052932443687. The reversal of 21052932443623 is 32634423925012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21052932443623 - 2²⁹ = 21052395572711 is a prime.

It is a super-2 number, since 2×21052932443623² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21052932443423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10526466221811 + 10526466221812.

It is an arithmetic number, because the mean of its divisors is an integer number (10526466221812).

Almost surely, 2^{21052932443623} is an apocalyptic number.

21052932443623 is a deficient number, since it is larger than the sum of its proper divisors (1).

21052932443623 is an equidigital number, since it uses as much as digits as its factorization.

21052932443623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 21052932443623 in words is "twenty-one trillion, fifty-two billion, nine hundred thirty-two million, four hundred forty-three thousand, six hundred twenty-three".