1143232441331 has 4 divisors (see below), whose sum is σ = 1151959406664. Its totient is φ = 1134505476000.

The previous prime is 1143232441277. The next prime is 1143232441339. The reversal of 1143232441331 is 1331442323411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143232441331 is a prime.

It is a super-2 number, since 2×1143232441331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143232441339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4363482470 + ... + 4363482731.

It is an arithmetic number, because the mean of its divisors is an integer number (287989851666).

Almost surely, 2^{1143232441331} is an apocalyptic number.

1143232441331 is a deficient number, since it is larger than the sum of its proper divisors (8726965333).

1143232441331 is an equidigital number, since it uses as much as digits as its factorization.

1143232441331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8726965332.

The product of its digits is 20736, while the sum is 32.

Adding to 1143232441331 its reverse (1331442323411), we get a palindrome (2474674764742).

The spelling of 1143232441331 in words is "one trillion, one hundred forty-three billion, two hundred thirty-two million, four hundred forty-one thousand, three hundred thirty-one".