1142424311 has 4 divisors (see below), whose sum is σ = 1305627792. Its totient is φ = 979220832.

The previous prime is 1142424299. The next prime is 1142424331. The reversal of 1142424311 is 1134242411.

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-1142424311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142424331) 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, 81601730 + ... + 81601743.

It is an arithmetic number, because the mean of its divisors is an integer number (326406948).

Almost surely, 2^1142424311 is an apocalyptic number.

1142424311 is a deficient number, since it is larger than the sum of its proper divisors (163203481).

1142424311 is an equidigital number, since it uses as much as digits as its factorization.

1142424311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163203480.

The product of its digits is 768, while the sum is 23.

The square root of 1142424311 is about 33799.7679134044. The cubic root of 1142424311 is about 1045.3839118095.

Adding to 1142424311 its reverse (1134242411), we get a palindrome (2276666722).

The spelling of 1142424311 in words is "one billion, one hundred forty-two million, four hundred twenty-four thousand, three hundred eleven".