1442142311 has 4 divisors (see below), whose sum is σ = 1442488512. Its totient is φ = 1441796112.

The previous prime is 1442142301. The next prime is 1442142329. The reversal of 1442142311 is 1132412441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1132412441 = 71 ⋅15949471.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442142311 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 (1442142301) 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, 166775 + ... + 175208.

It is an arithmetic number, because the mean of its divisors is an integer number (360622128).

Almost surely, 2^1442142311 is an apocalyptic number.

1442142311 is a deficient number, since it is larger than the sum of its proper divisors (346201).

1442142311 is an equidigital number, since it uses as much as digits as its factorization.

1442142311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346200.

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

The square root of 1442142311 is about 37975.5488571265. The cubic root of 1442142311 is about 1129.8029549129.

Adding to 1442142311 its reverse (1132412441), we get a palindrome (2574554752).

The spelling of 1442142311 in words is "one billion, four hundred forty-two million, one hundred forty-two thousand, three hundred eleven".