2123200242 has 32 divisors (see below), whose sum is σ = 4923365760. Its totient is φ = 676962000.

The previous prime is 2123200169. The next prime is 2123200243. The reversal of 2123200242 is 2420023212.

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 (2123200243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853509 + ... + 855992.

It is an arithmetic number, because the mean of its divisors is an integer number (153855180).

Almost surely, 2^2123200242 is an apocalyptic number.

2123200242 is an abundant number, since it is smaller than the sum of its proper divisors (2800165518).

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

2123200242 is a wasteful number, since it uses less digits than its factorization.

2123200242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709535 (or 1709529 counting only the distinct ones).

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

The square root of 2123200242 is about 46078.1970350403. The cubic root of 2123200242 is about 1285.2777371571.

Adding to 2123200242 its reverse (2420023212), we get a palindrome (4543223454).

The spelling of 2123200242 in words is "two billion, one hundred twenty-three million, two hundred thousand, two hundred forty-two".