21102013002 has 16 divisors (see below), whose sum is σ = 48233172672. Its totient is φ = 6029146560.

The previous prime is 21102012989. The next prime is 21102013013. The reversal of 21102013002 is 20031020112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251214399 + ... + 251214482.

It is an arithmetic number, because the mean of its divisors is an integer number (3014573292).

Almost surely, 2^21102013002 is an apocalyptic number.

21102013002 is an abundant number, since it is smaller than the sum of its proper divisors (27131159670).

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

21102013002 is a wasteful number, since it uses less digits than its factorization.

21102013002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502428893.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21102013002 its reverse (20031020112), we get a palindrome (41133033114).

The spelling of 21102013002 in words is "twenty-one billion, one hundred two million, thirteen thousand, two".