21114460123 has 2 divisors, whose sum is σ = 21114460124. Its totient is φ = 21114460122.

The previous prime is 21114460117. The next prime is 21114460183. The reversal of 21114460123 is 32106441112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21114460123 - 2²⁹ = 20577589211 is a prime.

It is not a weakly prime, because it can be changed into another prime (21114460183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557230061 + 10557230062.

It is an arithmetic number, because the mean of its divisors is an integer number (10557230062).

Almost surely, 2^21114460123 is an apocalyptic number.

21114460123 is a deficient number, since it is larger than the sum of its proper divisors (1).

21114460123 is an equidigital number, since it uses as much as digits as its factorization.

21114460123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 21114460123 in words is "twenty-one billion, one hundred fourteen million, four hundred sixty thousand, one hundred twenty-three".