21101112301079 has 2 divisors, whose sum is σ = 21101112301080. Its totient is φ = 21101112301078.

The previous prime is 21101112300973. The next prime is 21101112301097. The reversal of 21101112301079 is 97010321110112.

Together with next prime (21101112301097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21101112301079 - 2²⁴ = 21101095523863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21101112301099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550556150539 + 10550556150540.

It is an arithmetic number, because the mean of its divisors is an integer number (10550556150540).

Almost surely, 2^{21101112301079} is an apocalyptic number.

21101112301079 is a deficient number, since it is larger than the sum of its proper divisors (1).

21101112301079 is an equidigital number, since it uses as much as digits as its factorization.

21101112301079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 29.

The spelling of 21101112301079 in words is "twenty-one trillion, one hundred one billion, one hundred twelve million, three hundred one thousand, seventy-nine".