1142431141 has 2 divisors, whose sum is σ = 1142431142. Its totient is φ = 1142431140.

The previous prime is 1142431139. The next prime is 1142431153. The reversal of 1142431141 is 1411342411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 976562500 + 165868641 = 31250^2 + 12879^2 .

It is an emirp because it is prime and its reverse (1411342411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142431141 - 2¹ = 1142431139 is a prime.

Together with 1142431139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142431111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571215570 + 571215571.

It is an arithmetic number, because the mean of its divisors is an integer number (571215571).

Almost surely, 2^1142431141 is an apocalyptic number.

It is an amenable number.

1142431141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142431141 is an equidigital number, since it uses as much as digits as its factorization.

1142431141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 22.

The square root of 1142431141 is about 33799.8689494501. The cubic root of 1142431141 is about 1045.3859950862.

Adding to 1142431141 its reverse (1411342411), we get a palindrome (2553773552).

The spelling of 1142431141 in words is "one billion, one hundred forty-two million, four hundred thirty-one thousand, one hundred forty-one".