100243342 has 4 divisors (see below), whose sum is σ = 150365016. Its totient is φ = 50121670.

The previous prime is 100243327. The next prime is 100243349. The reversal of 100243342 is 243342001.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100243349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25060834 + ... + 25060837.

It is an arithmetic number, because the mean of its divisors is an integer number (37591254).

Almost surely, 2^100243342 is an apocalyptic number.

100243342 is a deficient number, since it is larger than the sum of its proper divisors (50121674).

100243342 is an equidigital number, since it uses as much as digits as its factorization.

100243342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50121673.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 100243342 is about 10012.1597070762. The cubic root of 100243342 is about 464.5350762177.

Adding to 100243342 its reverse (243342001), we get a palindrome (343585343).

It can be divided in two parts, 10024 and 3342, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 100243342 in words is "one hundred million, two hundred forty-three thousand, three hundred forty-two".