100105778083 has 4 divisors (see below), whose sum is σ = 100106662240. Its totient is φ = 100104893928.

The previous prime is 100105778081. The next prime is 100105778147. The reversal of 100105778083 is 380877501001.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 380877501001 = 5413 ⋅70363477.

It is a cyclic number.

It is not a de Polignac number, because 100105778083 - 2¹ = 100105778081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100105778081) 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, 242088 + ... + 508741.

It is an arithmetic number, because the mean of its divisors is an integer number (25026665560).

Almost surely, 2^100105778083 is an apocalyptic number.

100105778083 is a deficient number, since it is larger than the sum of its proper divisors (884157).

100105778083 is an equidigital number, since it uses as much as digits as its factorization.

100105778083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884156.

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 100105778083 in words is "one hundred billion, one hundred five million, seven hundred seventy-eight thousand, eighty-three".