21412423111193 has 2 divisors, whose sum is σ = 21412423111194. Its totient is φ = 21412423111192.

The previous prime is 21412423111153. The next prime is 21412423111231. The reversal of 21412423111193 is 39111132421412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11449107624409 + 9963315486784 = 3383653^2 + 3156472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21412423111193 is a prime.

It is a super-2 number, since 2×21412423111193² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (21412423111153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10706211555596 + 10706211555597.

It is an arithmetic number, because the mean of its divisors is an integer number (10706211555597).

Almost surely, 2^{21412423111193} is an apocalyptic number.

It is an amenable number.

21412423111193 is a deficient number, since it is larger than the sum of its proper divisors (1).

21412423111193 is an equidigital number, since it uses as much as digits as its factorization.

21412423111193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The spelling of 21412423111193 in words is "twenty-one trillion, four hundred twelve billion, four hundred twenty-three million, one hundred eleven thousand, one hundred ninety-three".