21103210020130 has 32 divisors (see below), whose sum is σ = 43413028323840. Its totient is φ = 7235267864640.

The previous prime is 21103210020121. The next prime is 21103210020133. The reversal of 21103210020130 is 3102001230112.

It is not an unprimeable number, because it can be changed into a prime (21103210020133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1894656 + ... + 6767284.

It is an arithmetic number, because the mean of its divisors is an integer number (1356657135120).

Almost surely, 2^{21103210020130} is an apocalyptic number.

21103210020130 is an abundant number, since it is smaller than the sum of its proper divisors (22309818303710).

21103210020130 is a wasteful number, since it uses less digits than its factorization.

21103210020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934514.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21103210020130 its reverse (3102001230112), we get a palindrome (24205211250242).

The spelling of 21103210020130 in words is "twenty-one trillion, one hundred three billion, two hundred ten million, twenty thousand, one hundred thirty".