1144232331 has 16 divisors (see below), whose sum is σ = 1668817920. Its totient is φ = 691607520.

The previous prime is 1144232329. The next prime is 1144232347. The reversal of 1144232331 is 1332324411.

It is a happy number.

It is not a de Polignac number, because 1144232331 - 2¹ = 1144232329 is a prime.

It is a super-2 number, since 2×1144232331² = 2618535254611387122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1144272331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34171 + ... + 58788.

It is an arithmetic number, because the mean of its divisors is an integer number (104301120).

Almost surely, 2^1144232331 is an apocalyptic number.

1144232331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1144232331 is a deficient number, since it is larger than the sum of its proper divisors (524585589).

1144232331 is a wasteful number, since it uses less digits than its factorization.

1144232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93346.

The product of its digits is 1728, while the sum is 24.

The square root of 1144232331 is about 33826.5033812246. The cubic root of 1144232331 is about 1045.9351018794.

Adding to 1144232331 its reverse (1332324411), we get a palindrome (2476556742).

The spelling of 1144232331 in words is "one billion, one hundred forty-four million, two hundred thirty-two thousand, three hundred thirty-one".