21367366341 has 4 divisors (see below), whose sum is σ = 28489821792. Its totient is φ = 14244910892.

The previous prime is 21367366337. The next prime is 21367366409. The reversal of 21367366341 is 14366376312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21367366341 - 2² = 21367366337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21367366293 and 21367366302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21367364341) 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, 3561227721 + ... + 3561227726.

It is an arithmetic number, because the mean of its divisors is an integer number (7122455448).

Almost surely, 2^21367366341 is an apocalyptic number.

It is an amenable number.

21367366341 is a deficient number, since it is larger than the sum of its proper divisors (7122455451).

21367366341 is an equidigital number, since it uses as much as digits as its factorization.

21367366341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122455450.

The product of its digits is 326592, while the sum is 42.

The spelling of 21367366341 in words is "twenty-one billion, three hundred sixty-seven million, three hundred sixty-six thousand, three hundred forty-one".