21203442403104 has 96 divisors (see below), whose sum is σ = 59968875585024. Its totient is φ = 6521047695360.

The previous prime is 21203442403063. The next prime is 21203442403123. The reversal of 21203442403104 is 40130424430212.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1383312 + ... + 6657359.

It is an arithmetic number, because the mean of its divisors is an integer number (624675787344).

Almost surely, 2^{21203442403104} is an apocalyptic number.

21203442403104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21203442403104 is an abundant number, since it is smaller than the sum of its proper divisors (38765433181920).

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

21203442403104 is a wasteful number, since it uses less digits than its factorization.

21203442403104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042810 (or 8042802 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 21203442403104 its reverse (40130424430212), we get a palindrome (61333866833316).

The spelling of 21203442403104 in words is "twenty-one trillion, two hundred three billion, four hundred forty-two million, four hundred three thousand, one hundred four".