1442113331 has 4 divisors (see below), whose sum is σ = 1442814432. Its totient is φ = 1441412232.

The previous prime is 1442113307. The next prime is 1442113429. The reversal of 1442113331 is 1333112441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1333112441 = 691 ⋅1929251.

It is a cyclic number.

It is not a de Polignac number, because 1442113331 - 2¹⁰ = 1442112307 is a prime.

It is a super-2 number, since 2×1442113331² = 4159381718895831122, 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 = 1442113297 and 1442113306.

It is not an unprimeable number, because it can be changed into a prime (1442113301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347456 + ... + 351581.

It is an arithmetic number, because the mean of its divisors is an integer number (360703608).

Almost surely, 2^1442113331 is an apocalyptic number.

1442113331 is a deficient number, since it is larger than the sum of its proper divisors (701101).

1442113331 is an equidigital number, since it uses as much as digits as its factorization.

1442113331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701100.

The product of its digits is 864, while the sum is 23.

The square root of 1442113331 is about 37975.1672939041. The cubic root of 1442113331 is about 1129.7953870262.

Adding to 1442113331 its reverse (1333112441), we get a palindrome (2775225772).

The spelling of 1442113331 in words is "one billion, four hundred forty-two million, one hundred thirteen thousand, three hundred thirty-one".