1142224311 has 16 divisors (see below), whose sum is σ = 1603846400. Its totient is φ = 721078848.

The previous prime is 1142224297. The next prime is 1142224313. The reversal of 1142224311 is 1134222411.

It is not a de Polignac number, because 1142224311 - 2¹⁰ = 1142223287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142224313) 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, 216675 + ... + 221883.

It is an arithmetic number, because the mean of its divisors is an integer number (100240400).

Almost surely, 2^1142224311 is an apocalyptic number.

1142224311 is a deficient number, since it is larger than the sum of its proper divisors (461622089).

1142224311 is a wasteful number, since it uses less digits than its factorization.

1142224311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9078.

The product of its digits is 384, while the sum is 21.

The square root of 1142224311 is about 33796.8091837085. The cubic root of 1142224311 is about 1045.3229044172.

Adding to 1142224311 its reverse (1134222411), we get a palindrome (2276446722).

The spelling of 1142224311 in words is "one billion, one hundred forty-two million, two hundred twenty-four thousand, three hundred eleven".