1113232331 has 4 divisors (see below), whose sum is σ = 1113950712. Its totient is φ = 1112513952.

The previous prime is 1113232327. The next prime is 1113232339. The reversal of 1113232331 is 1332323111.

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

It is a cyclic number.

It is not a de Polignac number, because 1113232331 - 2² = 1113232327 is a prime.

It is a super-2 number, since 2×1113232331² = 2478572445567387122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113232339) 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, 356861 + ... + 359966.

It is an arithmetic number, because the mean of its divisors is an integer number (278487678).

Almost surely, 2^1113232331 is an apocalyptic number.

1113232331 is a deficient number, since it is larger than the sum of its proper divisors (718381).

1113232331 is an equidigital number, since it uses as much as digits as its factorization.

1113232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718380.

The product of its digits is 324, while the sum is 20.

The square root of 1113232331 is about 33365.1364600836. The cubic root of 1113232331 is about 1036.4028619980.

Adding to 1113232331 its reverse (1332323111), we get a palindrome (2445555442).

The spelling of 1113232331 in words is "one billion, one hundred thirteen million, two hundred thirty-two thousand, three hundred thirty-one".