20442401983 has 2 divisors, whose sum is σ = 20442401984. Its totient is φ = 20442401982.

The previous prime is 20442401963. The next prime is 20442402017. The reversal of 20442401983 is 38910424402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20442401983 - 2¹³ = 20442393791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20442401963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10221200991 + 10221200992.

It is an arithmetic number, because the mean of its divisors is an integer number (10221200992).

Almost surely, 2^20442401983 is an apocalyptic number.

20442401983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20442401983 is an equidigital number, since it uses as much as digits as its factorization.

20442401983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 20442401983 in words is "twenty billion, four hundred forty-two million, four hundred one thousand, nine hundred eighty-three".