11133130421 has 16 divisors (see below), whose sum is σ = 13228512000. Its totient is φ = 9167292288.

The previous prime is 11133130403. The next prime is 11133130433. The reversal of 11133130421 is 12403133111.

It is not a de Polignac number, because 11133130421 - 2¹⁸ = 11132868277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11133130393 and 11133130402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133130441) 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, 97400 + ... + 178193.

It is an arithmetic number, because the mean of its divisors is an integer number (826782000).

Almost surely, 2^11133130421 is an apocalyptic number.

It is an amenable number.

11133130421 is a deficient number, since it is larger than the sum of its proper divisors (2095381579).

11133130421 is a wasteful number, since it uses less digits than its factorization.

11133130421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275828.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11133130421 its reverse (12403133111), we get a palindrome (23536263532).

The spelling of 11133130421 in words is "eleven billion, one hundred thirty-three million, one hundred thirty thousand, four hundred twenty-one".