19143104311 has 4 divisors (see below), whose sum is σ = 19208439432. Its totient is φ = 19077769192.

The previous prime is 19143104297. The next prime is 19143104329. The reversal of 19143104311 is 11340134191.

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 19143104311 - 2²¹ = 19141007159 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 19143104311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19143104341) 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 in 3 ways as a sum of consecutive naturals, for example, 32667121 + ... + 32667706.

It is an arithmetic number, because the mean of its divisors is an integer number (4802109858).

Almost surely, 2^19143104311 is an apocalyptic number.

19143104311 is a deficient number, since it is larger than the sum of its proper divisors (65335121).

19143104311 is an equidigital number, since it uses as much as digits as its factorization.

19143104311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65335120.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 19143104311 in words is "nineteen billion, one hundred forty-three million, one hundred four thousand, three hundred eleven".