11132203121 has 4 divisors (see below), whose sum is σ = 11988526452. Its totient is φ = 10275879792.

The previous prime is 11132203111. The next prime is 11132203123. The reversal of 11132203121 is 12130223111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 609546721 + 10522656400 = 24689^2 + 102580^2 .

It is a cyclic number.

It is not a de Polignac number, because 11132203121 - 2¹⁸ = 11131940977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11132203121.

It is not an unprimeable number, because it can be changed into a prime (11132203123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428161646 + ... + 428161671.

It is an arithmetic number, because the mean of its divisors is an integer number (2997131613).

Almost surely, 2^11132203121 is an apocalyptic number.

It is an amenable number.

11132203121 is a deficient number, since it is larger than the sum of its proper divisors (856323331).

11132203121 is an equidigital number, since it uses as much as digits as its factorization.

11132203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856323330.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11132203121 its reverse (12130223111), we get a palindrome (23262426232).

The spelling of 11132203121 in words is "eleven billion, one hundred thirty-two million, two hundred three thousand, one hundred twenty-one".