21301414009 has 4 divisors (see below), whose sum is σ = 21302676304. Its totient is φ = 21300151716.

The previous prime is 21301413983. The next prime is 21301414021. The reversal of 21301414009 is 90041410312.

It is a happy number.

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 21301414009 - 2⁵ = 21301413977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21301414039) 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 in 3 ways as a sum of consecutive naturals, for example, 605487 + ... + 639700.

It is an arithmetic number, because the mean of its divisors is an integer number (5325669076).

Almost surely, 2^21301414009 is an apocalyptic number.

It is an amenable number.

21301414009 is a deficient number, since it is larger than the sum of its proper divisors (1262295).

21301414009 is a wasteful number, since it uses less digits than its factorization.

21301414009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262294.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 21301414009 in words is "twenty-one billion, three hundred one million, four hundred fourteen thousand, nine".