11142232331 has 8 divisors (see below), whose sum is σ = 11462368320. Its totient is φ = 10825557568.

The previous prime is 11142232307. The next prime is 11142232333. The reversal of 11142232331 is 13323224111.

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 11142232331 - 2⁶ = 11142232267 is a prime.

It is a super-2 number, since 2×11142232331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11142232297 and 11142232306.

It is not an unprimeable number, because it can be changed into a prime (11142232333) 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, 858776 + ... + 871653.

It is an arithmetic number, because the mean of its divisors is an integer number (1432796040).

Almost surely, 2^11142232331 is an apocalyptic number.

11142232331 is a deficient number, since it is larger than the sum of its proper divisors (320135989).

11142232331 is a wasteful number, since it uses less digits than its factorization.

11142232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730613.

The product of its digits is 864, while the sum is 23.

Adding to 11142232331 its reverse (13323224111), we get a palindrome (24465456442).

The spelling of 11142232331 in words is "eleven billion, one hundred forty-two million, two hundred thirty-two thousand, three hundred thirty-one".