21103000100002 has 8 divisors (see below), whose sum is σ = 31654594596816. Its totient is φ = 10551468567732.

The previous prime is 21103000099981. The next prime is 21103000100099. The reversal of 21103000100002 is 20000100030112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21103000100002² (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 3 ways as a sum of consecutive naturals, for example, 14894128 + ... + 16249339.

It is an arithmetic number, because the mean of its divisors is an integer number (3956824324602).

Almost surely, 2^{21103000100002} is an apocalyptic number.

21103000100002 is a deficient number, since it is larger than the sum of its proper divisors (10551594496814).

21103000100002 is a wasteful number, since it uses less digits than its factorization.

21103000100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31482272.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 21103000100002 its reverse (20000100030112), we get a palindrome (41103100130114).

The spelling of 21103000100002 in words is "twenty-one trillion, one hundred three billion, one hundred thousand, two".