21301079495 has 4 divisors (see below), whose sum is σ = 25561295400. Its totient is φ = 17040863592.

The previous prime is 21301079489. The next prime is 21301079557. The reversal of 21301079495 is 59497010312.

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 21301079495 - 2¹⁴ = 21301063111 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130107945 + ... + 2130107954.

It is an arithmetic number, because the mean of its divisors is an integer number (6390323850).

Almost surely, 2^21301079495 is an apocalyptic number.

21301079495 is a deficient number, since it is larger than the sum of its proper divisors (4260215905).

21301079495 is an equidigital number, since it uses as much as digits as its factorization.

21301079495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260215904.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 21301079495 in words is "twenty-one billion, three hundred one million, seventy-nine thousand, four hundred ninety-five".