2172278103143 has 4 divisors (see below), whose sum is σ = 2172480959880. Its totient is φ = 2172075246408.

The previous prime is 2172278103089. The next prime is 2172278103187. The reversal of 2172278103143 is 3413018722712.

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 2172278103143 - 2¹⁰ = 2172278102119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2172278103143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172278100143) 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, 101412305 + ... + 101433722.

It is an arithmetic number, because the mean of its divisors is an integer number (543120239970).

Almost surely, 2^{2172278103143} is an apocalyptic number.

2172278103143 is a deficient number, since it is larger than the sum of its proper divisors (202856737).

2172278103143 is a wasteful number, since it uses less digits than its factorization.

2172278103143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202856736.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 2172278103143 in words is "two trillion, one hundred seventy-two billion, two hundred seventy-eight million, one hundred three thousand, one hundred forty-three".