1120043231 has 16 divisors (see below), whose sum is σ = 1161284256. Its totient is φ = 1079586816.

The previous prime is 1120043227. The next prime is 1120043273. The reversal of 1120043231 is 1323400211.

It is a cyclic number.

It is not a de Polignac number, because 1120043231 - 2² = 1120043227 is a prime.

It is a super-2 number, since 2×1120043231² = 2508993678617838722, 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 (1120043201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1714901 + ... + 1715553.

It is an arithmetic number, because the mean of its divisors is an integer number (72580266).

Almost surely, 2^1120043231 is an apocalyptic number.

1120043231 is a deficient number, since it is larger than the sum of its proper divisors (41241025).

1120043231 is a wasteful number, since it uses less digits than its factorization.

1120043231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1120043231 is about 33467.0469417306. The cubic root of 1120043231 is about 1038.5121819074.

Adding to 1120043231 its reverse (1323400211), we get a palindrome (2443443442).

The spelling of 1120043231 in words is "one billion, one hundred twenty million, forty-three thousand, two hundred thirty-one".