1143224331 has 8 divisors (see below), whose sum is σ = 1525414800. Its totient is φ = 761591712.

The previous prime is 1143224263. The next prime is 1143224351. The reversal of 1143224331 is 1334223411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1143224331 - 2¹⁰ = 1143223307 is a prime.

It is a super-2 number, since 2×1143224331² = 2613923741980795122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1143224351) 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, 134656 + ... + 142893.

It is an arithmetic number, because the mean of its divisors is an integer number (190676850).

Almost surely, 2^1143224331 is an apocalyptic number.

1143224331 is a deficient number, since it is larger than the sum of its proper divisors (382190469).

1143224331 is a wasteful number, since it uses less digits than its factorization.

1143224331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278925.

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

The square root of 1143224331 is about 33811.6005388683. The cubic root of 1143224331 is about 1045.6278762988.

Adding to 1143224331 its reverse (1334223411), we get a palindrome (2477447742).

The spelling of 1143224331 in words is "one billion, one hundred forty-three million, two hundred twenty-four thousand, three hundred thirty-one".