21033100130 has 32 divisors (see below), whose sum is σ = 45545362560. Its totient is φ = 6831803520.

The previous prime is 21033100093. The next prime is 21033100159. The reversal of 21033100130 is 3100133012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7905851 + ... + 7908510.

It is an arithmetic number, because the mean of its divisors is an integer number (1423292580).

Almost surely, 2^21033100130 is an apocalyptic number.

21033100130 is an abundant number, since it is smaller than the sum of its proper divisors (24512262430).

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

21033100130 is a wasteful number, since it uses less digits than its factorization.

21033100130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15814394.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 21033100130 its reverse (3100133012), we get a palindrome (24133233142).

The spelling of 21033100130 in words is "twenty-one billion, thirty-three million, one hundred thousand, one hundred thirty".