100243204042 has 8 divisors (see below), whose sum is σ = 150382034532. Its totient is φ = 50115859200.

The previous prime is 100243204031. The next prime is 100243204051. The reversal of 100243204042 is 240402342001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 98634311721 + 1608892321 = 314061^2 + 40111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849559 + ... + 2884522.

Almost surely, 2^100243204042 is an apocalyptic number.

100243204042 is a deficient number, since it is larger than the sum of its proper divisors (50138830490).

100243204042 is an equidigital number, since it uses as much as digits as its factorization.

100243204042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742824.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 100243204042 its reverse (240402342001), we get a palindrome (340645546043).

The spelling of 100243204042 in words is "one hundred billion, two hundred forty-three million, two hundred four thousand, forty-two".