21230201130 has 16 divisors (see below), whose sum is σ = 50952482784. Its totient is φ = 5661386960.

The previous prime is 21230201123. The next prime is 21230201131. The reversal of 21230201130 is 3110203212.

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

It is not an unprimeable number, because it can be changed into a prime (21230201131) by changing a digit.

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, 353836656 + ... + 353836715.

It is an arithmetic number, because the mean of its divisors is an integer number (3184530174).

Almost surely, 2^21230201130 is an apocalyptic number.

21230201130 is an abundant number, since it is smaller than the sum of its proper divisors (29722281654).

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

21230201130 is a wasteful number, since it uses less digits than its factorization.

21230201130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707673381.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21230201130 its reverse (3110203212), we get a palindrome (24340404342).

The spelling of 21230201130 in words is "twenty-one billion, two hundred thirty million, two hundred one thousand, one hundred thirty".