21002003000104 has 32 divisors (see below), whose sum is σ = 45119984457600. Its totient is φ = 8977719965760.

The previous prime is 21002003000053. The next prime is 21002003000113. The reversal of 21002003000104 is 40100030020012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482029332 + ... + 482072899.

It is an arithmetic number, because the mean of its divisors is an integer number (1409999514300).

Almost surely, 2^{21002003000104} is an apocalyptic number.

It is an amenable number.

21002003000104 is an abundant number, since it is smaller than the sum of its proper divisors (24117981457496).

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

21002003000104 is a wasteful number, since it uses less digits than its factorization.

21002003000104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964102633 (or 964102629 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21002003000104 its reverse (40100030020012), we get a palindrome (61102033020116).

The spelling of 21002003000104 in words is "twenty-one trillion, two billion, three million, one hundred four", and thus it is an aban number.