21304314827 has 8 divisors (see below), whose sum is σ = 21388921680. Its totient is φ = 21219770880.

The previous prime is 21304314803. The next prime is 21304314839. The reversal of 21304314827 is 72841340312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21304314827 - 2⁶ = 21304314763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21304314877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732923 + ... + 761435.

It is an arithmetic number, because the mean of its divisors is an integer number (2673615210).

Almost surely, 2^21304314827 is an apocalyptic number.

21304314827 is a deficient number, since it is larger than the sum of its proper divisors (84606853).

21304314827 is a wasteful number, since it uses less digits than its factorization.

21304314827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31453.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 21304314827 in words is "twenty-one billion, three hundred four million, three hundred fourteen thousand, eight hundred twenty-seven".