1112331131 has 4 divisors (see below), whose sum is σ = 1177762392. Its totient is φ = 1046899872.

The previous prime is 1112331113. The next prime is 1112331137. The reversal of 1112331131 is 1311332111.

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 1112331131 - 2¹⁸ = 1112068987 is a prime.

It is a super-2 number, since 2×1112331131² = 2474561089983478322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 65431243 = 1112331131 / (1 + 1 + 1 + 2 + 3 + 3 + 1 + 1 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112331137) 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, 32715605 + ... + 32715638.

It is an arithmetic number, because the mean of its divisors is an integer number (294440598).

Almost surely, 2^1112331131 is an apocalyptic number.

1112331131 is a deficient number, since it is larger than the sum of its proper divisors (65431261).

1112331131 is an equidigital number, since it uses as much as digits as its factorization.

1112331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65431260.

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

The square root of 1112331131 is about 33351.6286109089. The cubic root of 1112331131 is about 1036.1231185329.

Adding to 1112331131 its reverse (1311332111), we get a palindrome (2423663242).

The spelling of 1112331131 in words is "one billion, one hundred twelve million, three hundred thirty-one thousand, one hundred thirty-one".