1442430121 has 16 divisors (see below), whose sum is σ = 1587270528. Its totient is φ = 1299916800.

The previous prime is 1442430113. The next prime is 1442430169. The reversal of 1442430121 is 1210342441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1442430121 - 2³ = 1442430113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442430092 and 1442430101.

It is not an unprimeable number, because it can be changed into a prime (1442430181) 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 15 ways as a sum of consecutive naturals, for example, 1106356 + ... + 1107658.

It is an arithmetic number, because the mean of its divisors is an integer number (99204408).

Almost surely, 2^1442430121 is an apocalyptic number.

1442430121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1442430121 is a deficient number, since it is larger than the sum of its proper divisors (144840407).

1442430121 is a wasteful number, since it uses less digits than its factorization.

1442430121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1442430121 is about 37979.3380800666. The cubic root of 1442430121 is about 1129.8781086054.

Adding to 1442430121 its reverse (1210342441), we get a palindrome (2652772562).

The spelling of 1442430121 in words is "one billion, four hundred forty-two million, four hundred thirty thousand, one hundred twenty-one".