21104020314 has 64 divisors (see below), whose sum is σ = 50523782400. Its totient is φ = 6491174976.

The previous prime is 21104020313. The next prime is 21104020321. The reversal of 21104020314 is 41302040112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21104020313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3719872 + ... + 3725540.

It is an arithmetic number, because the mean of its divisors is an integer number (789434100).

Almost surely, 2^21104020314 is an apocalyptic number.

21104020314 is an abundant number, since it is smaller than the sum of its proper divisors (29419762086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21104020314 is a wasteful number, since it uses less digits than its factorization.

21104020314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10996 (or 10990 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21104020314 its reverse (41302040112), we get a palindrome (62406060426).

The spelling of 21104020314 in words is "twenty-one billion, one hundred four million, twenty thousand, three hundred fourteen".