21112641983 has 2 divisors, whose sum is σ = 21112641984. Its totient is φ = 21112641982.

The previous prime is 21112641937. The next prime is 21112642037. The reversal of 21112641983 is 38914621112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21112641983 - 2¹⁰ = 21112640959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21112641923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556320991 + 10556320992.

It is an arithmetic number, because the mean of its divisors is an integer number (10556320992).

Almost surely, 2^21112641983 is an apocalyptic number.

21112641983 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112641983 is an equidigital number, since it uses as much as digits as its factorization.

21112641983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The spelling of 21112641983 in words is "twenty-one billion, one hundred twelve million, six hundred forty-one thousand, nine hundred eighty-three".