21214026064123 has 2 divisors, whose sum is σ = 21214026064124. Its totient is φ = 21214026064122.

The previous prime is 21214026064081. The next prime is 21214026064139. The reversal of 21214026064123 is 32146062041212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21214026064123 is a prime.

It is not a weakly prime, because it can be changed into another prime (21214026064823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10607013032061 + 10607013032062.

It is an arithmetic number, because the mean of its divisors is an integer number (10607013032062).

Almost surely, 2^{21214026064123} is an apocalyptic number.

21214026064123 is a deficient number, since it is larger than the sum of its proper divisors (1).

21214026064123 is an equidigital number, since it uses as much as digits as its factorization.

21214026064123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 21214026064123 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, sixty-four thousand, one hundred twenty-three".