1442111131 has 8 divisors (see below), whose sum is σ = 1462685184. Its totient is φ = 1421559360.

The previous prime is 1442111129. The next prime is 1442111161. The reversal of 1442111131 is 1311112441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442111131 - 2¹ = 1442111129 is a prime.

It is a super-2 number, since 2×1442111131² = 4159369028308198322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442111099 and 1442111108.

It is not an unprimeable number, because it can be changed into a prime (1442111161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158886 + ... + 167716.

It is an arithmetic number, because the mean of its divisors is an integer number (182835648).

Almost surely, 2^1442111131 is an apocalyptic number.

1442111131 is a deficient number, since it is larger than the sum of its proper divisors (20574053).

1442111131 is an equidigital number, since it uses as much as digits as its factorization.

1442111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11141.

The product of its digits is 96, while the sum is 19.

The square root of 1442111131 is about 37975.1383275953. The cubic root of 1442111131 is about 1129.7948125103.

Adding to 1442111131 its reverse (1311112441), we get a palindrome (2753223572).

It can be divided in two parts, 14421 and 11131, that added together give a palindrome (25552).

The spelling of 1442111131 in words is "one billion, four hundred forty-two million, one hundred eleven thousand, one hundred thirty-one".