21376113403267 has 4 divisors (see below), whose sum is σ = 24429843889456. Its totient is φ = 18322382917080.

The previous prime is 21376113403243. The next prime is 21376113403289. The reversal of 21376113403267 is 76230431167312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21376113403267 - 2¹⁹ = 21376112878979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21376113400267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526865243084 + ... + 1526865243097.

It is an arithmetic number, because the mean of its divisors is an integer number (6107460972364).

Almost surely, 2^{21376113403267} is an apocalyptic number.

21376113403267 is a deficient number, since it is larger than the sum of its proper divisors (3053730486189).

21376113403267 is an equidigital number, since it uses as much as digits as its factorization.

21376113403267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053730486188.

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 21376113403267 in words is "twenty-one trillion, three hundred seventy-six billion, one hundred thirteen million, four hundred three thousand, two hundred sixty-seven".