21010122012983 has 2 divisors, whose sum is σ = 21010122012984. Its totient is φ = 21010122012982.

The previous prime is 21010122012973. The next prime is 21010122013171. The reversal of 21010122012983 is 38921022101012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21010122012983 - 2²⁰ = 21010120964407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010122012953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505061006491 + 10505061006492.

It is an arithmetic number, because the mean of its divisors is an integer number (10505061006492).

Almost surely, 2^{21010122012983} is an apocalyptic number.

21010122012983 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010122012983 is an equidigital number, since it uses as much as digits as its factorization.

21010122012983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

Adding to 21010122012983 its reverse (38921022101012), we get a palindrome (59931144113995).

The spelling of 21010122012983 in words is "twenty-one trillion, ten billion, one hundred twenty-two million, twelve thousand, nine hundred eighty-three".