21011300002 has 64 divisors (see below), whose sum is σ = 39564000000. Its totient is φ = 8130170880.

The previous prime is 21011299987. The next prime is 21011300143. The reversal of 21011300002 is 20000311012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16821874 + ... + 16823122.

It is an arithmetic number, because the mean of its divisors is an integer number (618187500).

Almost surely, 2^21011300002 is an apocalyptic number.

21011300002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21011300002 is a deficient number, since it is larger than the sum of its proper divisors (18552699998).

21011300002 is a wasteful number, since it uses less digits than its factorization.

21011300002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

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

Adding to 21011300002 its reverse (20000311012), we get a palindrome (41011611014).

The spelling of 21011300002 in words is "twenty-one billion, eleven million, three hundred thousand, two".