21100083422953 has 2 divisors, whose sum is σ = 21100083422954. Its totient is φ = 21100083422952.

The previous prime is 21100083422909. The next prime is 21100083422969. The reversal of 21100083422953 is 35922438000112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15418281798544 + 5681801624409 = 3926612^2 + 2383653^2 .

It is a cyclic number.

It is not a de Polignac number, because 21100083422953 - 2⁹ = 21100083422441 is a prime.

It is not a weakly prime, because it can be changed into another prime (21100083422153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550041711476 + 10550041711477.

It is an arithmetic number, because the mean of its divisors is an integer number (10550041711477).

Almost surely, 2^{21100083422953} is an apocalyptic number.

It is an amenable number.

21100083422953 is a deficient number, since it is larger than the sum of its proper divisors (1).

21100083422953 is an equidigital number, since it uses as much as digits as its factorization.

21100083422953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 21100083422953 in words is "twenty-one trillion, one hundred billion, eighty-three million, four hundred twenty-two thousand, nine hundred fifty-three".