11132312231 has 8 divisors (see below), whose sum is σ = 11358169920. Its totient is φ = 10907040352.

The previous prime is 11132312227. The next prime is 11132312297. The reversal of 11132312231 is 13221323111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11132312231 - 2² = 11132312227 is a prime.

It is a super-2 number, since 2×11132312231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132312201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107960 + ... + 184173.

It is an arithmetic number, because the mean of its divisors is an integer number (1419771240).

Almost surely, 2^11132312231 is an apocalyptic number.

11132312231 is a deficient number, since it is larger than the sum of its proper divisors (225857689).

11132312231 is an equidigital number, since it uses as much as digits as its factorization.

11132312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292905.

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

Adding to 11132312231 its reverse (13221323111), we get a palindrome (24353635342).

The spelling of 11132312231 in words is "eleven billion, one hundred thirty-two million, three hundred twelve thousand, two hundred thirty-one".