21100120111093 has 2 divisors, whose sum is σ = 21100120111094. Its totient is φ = 21100120111092.

The previous prime is 21100120111061. The next prime is 21100120111123. The reversal of 21100120111093 is 39011102100112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13784571966564 + 7315548144529 = 3712758^2 + 2704727^2 .

It is a cyclic number.

It is not a de Polignac number, because 21100120111093 - 2⁵ = 21100120111061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21100120111013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550060055546 + 10550060055547.

It is an arithmetic number, because the mean of its divisors is an integer number (10550060055547).

Almost surely, 2^{21100120111093} is an apocalyptic number.

It is an amenable number.

21100120111093 is a deficient number, since it is larger than the sum of its proper divisors (1).

21100120111093 is an equidigital number, since it uses as much as digits as its factorization.

21100120111093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 21100120111093 in words is "twenty-one trillion, one hundred billion, one hundred twenty million, one hundred eleven thousand, ninety-three".