1442312111 has 4 divisors (see below), whose sum is σ = 1445598000. Its totient is φ = 1439026224.

The previous prime is 1442312101. The next prime is 1442312117. The reversal of 1442312111 is 1112132441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1112132441 = 7 ⋅158876063.

It is a cyclic number.

It is not a de Polignac number, because 1442312111 - 2¹⁸ = 1442049967 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 (1442312117) 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, 1642286 + ... + 1643163.

It is an arithmetic number, because the mean of its divisors is an integer number (361399500).

Almost surely, 2^1442312111 is an apocalyptic number.

1442312111 is a deficient number, since it is larger than the sum of its proper divisors (3285889).

1442312111 is an equidigital number, since it uses as much as digits as its factorization.

1442312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285888.

The product of its digits is 192, while the sum is 20.

The square root of 1442312111 is about 37977.7844403804. The cubic root of 1442312111 is about 1129.8472947379.

Adding to 1442312111 its reverse (1112132441), we get a palindrome (2554444552).

The spelling of 1442312111 in words is "one billion, four hundred forty-two million, three hundred twelve thousand, one hundred eleven".