2443121142 has 64 divisors (see below), whose sum is σ = 6115405824. Its totient is φ = 632132640.

The previous prime is 2443121081. The next prime is 2443121173. The reversal of 2443121142 is 2411213442.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111453 + ... + 131559.

It is an arithmetic number, because the mean of its divisors is an integer number (95553216).

Almost surely, 2^2443121142 is an apocalyptic number.

2443121142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2443121142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3057702912).

2443121142 is an abundant number, since it is smaller than the sum of its proper divisors (3672284682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2443121142 is a wasteful number, since it uses less digits than its factorization.

2443121142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20393.

The product of its digits is 1536, while the sum is 24.

The square root of 2443121142 is about 49427.9388807585. The cubic root of 2443121142 is about 1346.8368819605.

Adding to 2443121142 its reverse (2411213442), we get a palindrome (4854334584).

The spelling of 2443121142 in words is "two billion, four hundred forty-three million, one hundred twenty-one thousand, one hundred forty-two".