21652348043 has 2 divisors, whose sum is σ = 21652348044. Its totient is φ = 21652348042.

The previous prime is 21652348019. The next prime is 21652348049. The reversal of 21652348043 is 34084325612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21652348043 - 2¹⁸ = 21652085899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21652347988 and 21652348006.

It is not a weakly prime, because it can be changed into another prime (21652348049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10826174021 + 10826174022.

It is an arithmetic number, because the mean of its divisors is an integer number (10826174022).

Almost surely, 2^21652348043 is an apocalyptic number.

21652348043 is a deficient number, since it is larger than the sum of its proper divisors (1).

21652348043 is an equidigital number, since it uses as much as digits as its factorization.

21652348043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 21652348043 in words is "twenty-one billion, six hundred fifty-two million, three hundred forty-eight thousand, forty-three".