21001102103002 has 16 divisors (see below), whose sum is σ = 36020533534272. Its totient is φ = 8995811276160.

The previous prime is 21001102102993. The next prime is 21001102103017. The reversal of 21001102103002 is 20030120110012.

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, 388393143 + ... + 388447210.

It is an arithmetic number, because the mean of its divisors is an integer number (2251283345892).

Almost surely, 2^{21001102103002} is an apocalyptic number.

21001102103002 is a deficient number, since it is larger than the sum of its proper divisors (15019431431270).

21001102103002 is a wasteful number, since it uses less digits than its factorization.

21001102103002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776842293.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21001102103002 its reverse (20030120110012), we get a palindrome (41031222213014).

The spelling of 21001102103002 in words is "twenty-one trillion, one billion, one hundred two million, one hundred three thousand, two".