21320344200104 has 32 divisors (see below), whose sum is σ = 40560502464000. Its totient is φ = 10505253434880.

The previous prime is 21320344200073. The next prime is 21320344200131. The reversal of 21320344200104 is 40100244302312.

It is a super-2 number, since 2×21320344200104² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65037929 + ... + 65364920.

It is an arithmetic number, because the mean of its divisors is an integer number (1267515702000).

Almost surely, 2^{21320344200104} is an apocalyptic number.

It is an amenable number.

21320344200104 is a deficient number, since it is larger than the sum of its proper divisors (19240158263896).

21320344200104 is a wasteful number, since it uses less digits than its factorization.

21320344200104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130403153 (or 130403149 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21320344200104 its reverse (40100244302312), we get a palindrome (61420588502416).

The spelling of 21320344200104 in words is "twenty-one trillion, three hundred twenty billion, three hundred forty-four million, two hundred thousand, one hundred four".