21202423883 has 2 divisors, whose sum is σ = 21202423884. Its totient is φ = 21202423882.

The previous prime is 21202423877. The next prime is 21202423933. The reversal of 21202423883 is 38832420212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21202423883 is a prime.

It is not a weakly prime, because it can be changed into another prime (21202423873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601211941 + 10601211942.

It is an arithmetic number, because the mean of its divisors is an integer number (10601211942).

Almost surely, 2^21202423883 is an apocalyptic number.

21202423883 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202423883 is an equidigital number, since it uses as much as digits as its factorization.

21202423883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 21202423883 in words is "twenty-one billion, two hundred two million, four hundred twenty-three thousand, eight hundred eighty-three".