21002330130 has 16 divisors (see below), whose sum is σ = 50405592384. Its totient is φ = 5600621360.

The previous prime is 21002330117. The next prime is 21002330191. The reversal of 21002330130 is 3103320012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350038806 + ... + 350038865.

It is an arithmetic number, because the mean of its divisors is an integer number (3150349524).

Almost surely, 2^21002330130 is an apocalyptic number.

21002330130 is an abundant number, since it is smaller than the sum of its proper divisors (29403262254).

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

21002330130 is a wasteful number, since it uses less digits than its factorization.

21002330130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700077681.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21002330130 its reverse (3103320012), we get a palindrome (24105650142).

The spelling of 21002330130 in words is "twenty-one billion, two million, three hundred thirty thousand, one hundred thirty".