100442342041243 has 4 divisors (see below), whose sum is σ = 100442377577880. Its totient is φ = 100442306504608.

The previous prime is 100442342041231. The next prime is 100442342041273. The reversal of 100442342041243 is 342140243244001.

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

It is a cyclic number.

It is not a de Polignac number, because 100442342041243 - 2²⁵ = 100442308486811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100442342041199 and 100442342041208.

It is not an unprimeable number, because it can be changed into a prime (100442342041213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13124005 + ... + 19316422.

It is an arithmetic number, because the mean of its divisors is an integer number (25110594394470).

Almost surely, 2^{100442342041243} is an apocalyptic number.

100442342041243 is a deficient number, since it is larger than the sum of its proper divisors (35536637).

100442342041243 is an equidigital number, since it uses as much as digits as its factorization.

100442342041243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35536636.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 100442342041243 its reverse (342140243244001), we get a palindrome (442582585285244).

The spelling of 100442342041243 in words is "one hundred trillion, four hundred forty-two billion, three hundred forty-two million, forty-one thousand, two hundred forty-three".