100342420424 has 8 divisors (see below), whose sum is σ = 188142038310. Its totient is φ = 50171210208.

The previous prime is 100342420363. The next prime is 100342420447. The reversal of 100342420424 is 424024243001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 93197099524 + 7145320900 = 305282^2 + 84530^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 100342420393 and 100342420402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6271401269 + ... + 6271401284.

Almost surely, 2^100342420424 is an apocalyptic number.

It is an amenable number.

100342420424 is a deficient number, since it is larger than the sum of its proper divisors (87799617886).

100342420424 is a wasteful number, since it uses less digits than its factorization.

100342420424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12542802559 (or 12542802555 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 100342420424 its reverse (424024243001), we get a palindrome (524366663425).

The spelling of 100342420424 in words is "one hundred billion, three hundred forty-two million, four hundred twenty thousand, four hundred twenty-four".