1140430331 has 8 divisors (see below), whose sum is σ = 1205022720. Its totient is φ = 1076294952.

The previous prime is 1140430303. The next prime is 1140430337. The reversal of 1140430331 is 1330340411.

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 1140430331 - 2²² = 1136236027 is a prime.

It is a super-2 number, since 2×1140430331² = 2601162679729539122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140430337) 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, 109115 + ... + 119108.

It is an arithmetic number, because the mean of its divisors is an integer number (150627840).

Almost surely, 2^1140430331 is an apocalyptic number.

1140430331 is a deficient number, since it is larger than the sum of its proper divisors (64592389).

1140430331 is a wasteful number, since it uses less digits than its factorization.

1140430331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228505.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1140430331 is about 33770.2580831121. The cubic root of 1140430331 is about 1044.7753555102.

Adding to 1140430331 its reverse (1330340411), we get a palindrome (2470770742).

The spelling of 1140430331 in words is "one billion, one hundred forty million, four hundred thirty thousand, three hundred thirty-one".