2003243402242 has 16 divisors (see below), whose sum is σ = 3108517284600. Its totient is φ = 967071777280.

The previous prime is 2003243402239. The next prime is 2003243402249. The reversal of 2003243402242 is 2422043423002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1540202620401 + 463040781841 = 1241049^2 + 680471^2 .

It is a super-2 number, since 2×2003243402242² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2003243402242.

It is not an unprimeable number, because it can be changed into a prime (2003243402249) 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, 7098192 + ... + 7375012.

Almost surely, 2^{2003243402242} is an apocalyptic number.

2003243402242 is a deficient number, since it is larger than the sum of its proper divisors (1105273882358).

2003243402242 is a wasteful number, since it uses less digits than its factorization.

2003243402242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401621.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 2003243402242 its reverse (2422043423002), we get a palindrome (4425286825244).

The spelling of 2003243402242 in words is "two trillion, three billion, two hundred forty-three million, four hundred two thousand, two hundred forty-two".