100243042402 has 8 divisors (see below), whose sum is σ = 150376884012. Its totient is φ = 50117414400.

The previous prime is 100243042387. The next prime is 100243042441. The reversal of 100243042402 is 204240342001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96037390201 + 4205652201 = 309899^2 + 64851^2 .

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, 2022799 + ... + 2071762.

Almost surely, 2^100243042402 is an apocalyptic number.

100243042402 is a deficient number, since it is larger than the sum of its proper divisors (50133841610).

100243042402 is a wasteful number, since it uses less digits than its factorization.

100243042402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106804.

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

Adding to 100243042402 its reverse (204240342001), we get a palindrome (304483384403).

The spelling of 100243042402 in words is "one hundred billion, two hundred forty-three million, forty-two thousand, four hundred two".