100842860243 has 4 divisors (see below), whose sum is σ = 100843504608. Its totient is φ = 100842215880.

The previous prime is 100842860227. The next prime is 100842860257. The reversal of 100842860243 is 342068248001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 100842860243 - 2⁴ = 100842860227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100842860197 and 100842860206.

It is not an unprimeable number, because it can be changed into a prime (100842860213) 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, 79505 + ... + 456077.

It is an arithmetic number, because the mean of its divisors is an integer number (25210876152).

Almost surely, 2^100842860243 is an apocalyptic number.

100842860243 is a deficient number, since it is larger than the sum of its proper divisors (644365).

100842860243 is an equidigital number, since it uses as much as digits as its factorization.

100842860243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644364.

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 100842860243 in words is "one hundred billion, eight hundred forty-two million, eight hundred sixty thousand, two hundred forty-three".