1143231441 has 16 divisors (see below), whose sum is σ = 1664532480. Its totient is φ = 692179920.

The previous prime is 1143231409. The next prime is 1143231451. The reversal of 1143231441 is 1441323411.

It is not a de Polignac number, because 1143231441 - 2⁵ = 1143231409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143231451) 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, 17616 + ... + 50958.

It is an arithmetic number, because the mean of its divisors is an integer number (104033280).

Almost surely, 2^1143231441 is an apocalyptic number.

1143231441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1143231441 is a deficient number, since it is larger than the sum of its proper divisors (521301039).

1143231441 is a wasteful number, since it uses less digits than its factorization.

1143231441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34396.

The product of its digits is 1152, while the sum is 24.

The square root of 1143231441 is about 33811.7056801339. The cubic root of 1143231441 is about 1045.6300439687.

Adding to 1143231441 its reverse (1441323411), we get a palindrome (2584554852).

The spelling of 1143231441 in words is "one billion, one hundred forty-three million, two hundred thirty-one thousand, four hundred forty-one".