19109801141 has 4 divisors (see below), whose sum is σ = 19110885984. Its totient is φ = 19108716300.

The previous prime is 19109801129. The next prime is 19109801147. The reversal of 19109801141 is 14110890191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19109801141 - 2¹⁰ = 19109800117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19109801147) 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, 515555 + ... + 551376.

It is an arithmetic number, because the mean of its divisors is an integer number (4777721496).

Almost surely, 2^19109801141 is an apocalyptic number.

It is an amenable number.

19109801141 is a deficient number, since it is larger than the sum of its proper divisors (1084843).

19109801141 is a wasteful number, since it uses less digits than its factorization.

19109801141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084842.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 19109801141 in words is "nineteen billion, one hundred nine million, eight hundred one thousand, one hundred forty-one".