1120423431 has 4 divisors (see below), whose sum is σ = 1493897912. Its totient is φ = 746948952.

The previous prime is 1120423411. The next prime is 1120423453. The reversal of 1120423431 is 1343240211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1120423431 - 2⁵ = 1120423399 is a prime.

It is a super-2 number, since 2×1120423431² = 2510697329467623522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120423398 and 1120423407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120423411) 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, 186737236 + ... + 186737241.

It is an arithmetic number, because the mean of its divisors is an integer number (373474478).

Almost surely, 2^1120423431 is an apocalyptic number.

1120423431 is a deficient number, since it is larger than the sum of its proper divisors (373474481).

1120423431 is an equidigital number, since it uses as much as digits as its factorization.

1120423431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373474480.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1120423431 is about 33472.7266741149. The cubic root of 1120423431 is about 1038.6296766768.

Adding to 1120423431 its reverse (1343240211), we get a palindrome (2463663642).

The spelling of 1120423431 in words is "one billion, one hundred twenty million, four hundred twenty-three thousand, four hundred thirty-one".