21130132203 has 16 divisors (see below), whose sum is σ = 31306137600. Its totient is φ = 14085747720.

The previous prime is 21130132183. The next prime is 21130132211. The reversal of 21130132203 is 30223103112.

It is not a de Polignac number, because 21130132203 - 2⁵ = 21130132171 is a prime.

It is a super-4 number, since 4×21130132203⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (21130132253) 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, 739798 + ... + 767828.

It is an arithmetic number, because the mean of its divisors is an integer number (1956633600).

Almost surely, 2^21130132203 is an apocalyptic number.

21130132203 is a deficient number, since it is larger than the sum of its proper divisors (10176005397).

21130132203 is a wasteful number, since it uses less digits than its factorization.

21130132203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55959 (or 55953 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21130132203 its reverse (30223103112), we get a palindrome (51353235315).

The spelling of 21130132203 in words is "twenty-one billion, one hundred thirty million, one hundred thirty-two thousand, two hundred three".