1112311231 has 8 divisors (see below), whose sum is σ = 1139054400. Its totient is φ = 1085884800.

The previous prime is 1112311223. The next prime is 1112311273. The reversal of 1112311231 is 1321132111.

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 1112311231 - 2³ = 1112311223 is a prime.

It is a super-2 number, since 2×1112311231² = 2474472549217470722, which 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 (1112311201) 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, 72070 + ... + 86131.

It is an arithmetic number, because the mean of its divisors is an integer number (142381800).

Almost surely, 2^1112311231 is an apocalyptic number.

1112311231 is a deficient number, since it is larger than the sum of its proper divisors (26743169).

1112311231 is an equidigital number, since it uses as much as digits as its factorization.

1112311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158369.

The product of its digits is 36, while the sum is 16.

The square root of 1112311231 is about 33351.3302733189. The cubic root of 1112311231 is about 1036.1169396255.

Adding to 1112311231 its reverse (1321132111), we get a palindrome (2433443342).

The spelling of 1112311231 in words is "one billion, one hundred twelve million, three hundred eleven thousand, two hundred thirty-one".