2002123242 has 96 divisors (see below), whose sum is σ = 5076864000. Its totient is φ = 569997792.

The previous prime is 2002123241. The next prime is 2002123259. The reversal of 2002123242 is 2423212002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2002123241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2957008 + ... + 2957684.

It is an arithmetic number, because the mean of its divisors is an integer number (52884000).

Almost surely, 2^2002123242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2002123242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2538432000).

2002123242 is an abundant number, since it is smaller than the sum of its proper divisors (3074740758).

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

2002123242 is a wasteful number, since it uses less digits than its factorization.

2002123242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2002123242 is about 44745.0918202209. The cubic root of 2002123242 is about 1260.3667450939.

Adding to 2002123242 its reverse (2423212002), we get a palindrome (4425335244).

The spelling of 2002123242 in words is "two billion, two million, one hundred twenty-three thousand, two hundred forty-two".