21304103711 has 8 divisors (see below), whose sum is σ = 23458045824. Its totient is φ = 19186362520.

The previous prime is 21304103669. The next prime is 21304103747. The reversal of 21304103711 is 11730140312.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21304103711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21304103011) 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, 9048995 + ... + 9051348.

It is an arithmetic number, because the mean of its divisors is an integer number (2932255728).

Almost surely, 2^21304103711 is an apocalyptic number.

21304103711 is a deficient number, since it is larger than the sum of its proper divisors (2153942113).

21304103711 is a wasteful number, since it uses less digits than its factorization.

21304103711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18100461.

The product of its (nonzero) digits is 504, while the sum is 23.

The spelling of 21304103711 in words is "twenty-one billion, three hundred four million, one hundred three thousand, seven hundred eleven".