1112131331 has 4 divisors (see below), whose sum is σ = 1112233752. Its totient is φ = 1112028912.

The previous prime is 1112131327. The next prime is 1112131337. The reversal of 1112131331 is 1331312111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1112131331 - 2² = 1112131327 is a prime.

It is a super-2 number, since 2×1112131331² = 2473672194783663122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112131337) 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, 32690 + ... + 57383.

It is an arithmetic number, because the mean of its divisors is an integer number (278058438).

Almost surely, 2^1112131331 is an apocalyptic number.

1112131331 is a deficient number, since it is larger than the sum of its proper divisors (102421).

1112131331 is an equidigital number, since it uses as much as digits as its factorization.

1112131331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102420.

The product of its digits is 54, while the sum is 17.

The square root of 1112131331 is about 33348.6331204144. The cubic root of 1112131331 is about 1036.0610777162.

Adding to 1112131331 its reverse (1331312111), we get a palindrome (2443443442).

The spelling of 1112131331 in words is "one billion, one hundred twelve million, one hundred thirty-one thousand, three hundred thirty-one".