21374124037223 has 2 divisors, whose sum is σ = 21374124037224. Its totient is φ = 21374124037222.

The previous prime is 21374124037171. The next prime is 21374124037237. The reversal of 21374124037223 is 32273042147312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21374124037223 - 2¹⁶ = 21374123971687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21374124037523) 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, 10687062018611 + 10687062018612.

It is an arithmetic number, because the mean of its divisors is an integer number (10687062018612).

Almost surely, 2^{21374124037223} is an apocalyptic number.

21374124037223 is a deficient number, since it is larger than the sum of its proper divisors (1).

21374124037223 is an equidigital number, since it uses as much as digits as its factorization.

21374124037223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 21374124037223 in words is "twenty-one trillion, three hundred seventy-four billion, one hundred twenty-four million, thirty-seven thousand, two hundred twenty-three".