1120431345 has 32 divisors (see below), whose sum is σ = 1961366400. Its totient is φ = 541655040.

The previous prime is 1120431337. The next prime is 1120431353. The reversal of 1120431345 is 5431340211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1120431337) and next prime (1120431353).

It is not a de Polignac number, because 1120431345 - 2³ = 1120431337 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47857 + ... + 67313.

It is an arithmetic number, because the mean of its divisors is an integer number (61292700).

Almost surely, 2^1120431345 is an apocalyptic number.

1120431345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1120431345 is a deficient number, since it is larger than the sum of its proper divisors (840935055).

1120431345 is a wasteful number, since it uses less digits than its factorization.

1120431345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19825.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1120431345 is about 33472.8448895519. The cubic root of 1120431345 is about 1038.6321220903.

Adding to 1120431345 its reverse (5431340211), we get a palindrome (6551771556).

The spelling of 1120431345 in words is "one billion, one hundred twenty million, four hundred thirty-one thousand, three hundred forty-five".