21110010983 has 2 divisors, whose sum is σ = 21110010984. Its totient is φ = 21110010982.

The previous prime is 21110010979. The next prime is 21110011049. The reversal of 21110010983 is 38901001112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21110010983 - 2² = 21110010979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21110010953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555005491 + 10555005492.

It is an arithmetic number, because the mean of its divisors is an integer number (10555005492).

Almost surely, 2^21110010983 is an apocalyptic number.

21110010983 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110010983 is an equidigital number, since it uses as much as digits as its factorization.

21110010983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 21110010983 in words is "twenty-one billion, one hundred ten million, ten thousand, nine hundred eighty-three".