1120313231 has 4 divisors (see below), whose sum is σ = 1137034392. Its totient is φ = 1103592072.

The previous prime is 1120313213. The next prime is 1120313267. The reversal of 1120313231 is 1323130211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323130211 = 13 ⋅101779247.

It is a cyclic number.

It is not a de Polignac number, because 1120313231 - 2¹⁴ = 1120296847 is a prime.

It is a super-2 number, since 2×1120313231² = 2510203471107318722, 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 (1120319231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8360480 + ... + 8360613.

It is an arithmetic number, because the mean of its divisors is an integer number (284258598).

Almost surely, 2^1120313231 is an apocalyptic number.

1120313231 is a deficient number, since it is larger than the sum of its proper divisors (16721161).

1120313231 is an equidigital number, since it uses as much as digits as its factorization.

1120313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16721160.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1120313231 is about 33471.0805173660. The cubic root of 1120313231 is about 1038.5956238536.

Adding to 1120313231 its reverse (1323130211), we get a palindrome (2443443442).

The spelling of 1120313231 in words is "one billion, one hundred twenty million, three hundred thirteen thousand, two hundred thirty-one".