21313303104 has 56 divisors (see below), whose sum is σ = 59708600928. Its totient is φ = 6686525440.

The previous prime is 21313303093. The next prime is 21313303129. The reversal of 21313303104 is 40130331312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3261642 + ... + 3268169.

Almost surely, 2^21313303104 is an apocalyptic number.

21313303104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21313303104 is an abundant number, since it is smaller than the sum of its proper divisors (38395297824).

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

21313303104 is a wasteful number, since it uses less digits than its factorization.

21313303104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529843 (or 6529833 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21313303104 its reverse (40130331312), we get a palindrome (61443634416).

The spelling of 21313303104 in words is "twenty-one billion, three hundred thirteen million, three hundred three thousand, one hundred four".