1142444011 has 8 divisors (see below), whose sum is σ = 1148898384. Its totient is φ = 1136002560.

The previous prime is 1142444003. The next prime is 1142444021. The reversal of 1142444011 is 1104442411.

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 1142444011 - 2³ = 1142444003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142444021) 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, 213691 + ... + 218971.

It is an arithmetic number, because the mean of its divisors is an integer number (143612298).

Almost surely, 2^1142444011 is an apocalyptic number.

1142444011 is a deficient number, since it is larger than the sum of its proper divisors (6454373).

1142444011 is an equidigital number, since it uses as much as digits as its factorization.

1142444011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1142444011 is about 33800.0593342674. The cubic root of 1142444011 is about 1045.3899206524.

Adding to 1142444011 its reverse (1104442411), we get a palindrome (2246886422).

The spelling of 1142444011 in words is "one billion, one hundred forty-two million, four hundred forty-four thousand, eleven".