21121323301319 has 4 divisors (see below), whose sum is σ = 21127278005544. Its totient is φ = 21115368597096.

The previous prime is 21121323301303. The next prime is 21121323301391. The reversal of 21121323301319 is 91310332312112.

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 21121323301319 - 2⁴ = 21121323301303 is a prime.

It is a super-2 number, since 2×21121323301319² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21121323351319) 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, 2977346792 + ... + 2977353885.

It is an arithmetic number, because the mean of its divisors is an integer number (5281819501386).

Almost surely, 2^{21121323301319} is an apocalyptic number.

21121323301319 is a deficient number, since it is larger than the sum of its proper divisors (5954704225).

21121323301319 is an equidigital number, since it uses as much as digits as its factorization.

21121323301319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954704224.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 21121323301319 in words is "twenty-one trillion, one hundred twenty-one billion, three hundred twenty-three million, three hundred one thousand, three hundred nineteen".