1919200111103 has 24 divisors (see below), whose sum is σ = 2151656816400. Its totient is φ = 1709960046080.

The previous prime is 1919200111091. The next prime is 1919200111141. The reversal of 1919200111103 is 3011110029191.

It is not a de Polignac number, because 1919200111103 - 2²⁰ = 1919199062527 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 (1919200111163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5796608 + ... + 6118746.

It is an arithmetic number, because the mean of its divisors is an integer number (89652367350).

Almost surely, 2^{1919200111103} is an apocalyptic number.

1919200111103 is a deficient number, since it is larger than the sum of its proper divisors (232456705297).

1919200111103 is a wasteful number, since it uses less digits than its factorization.

1919200111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323143 (or 323132 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 29.

The spelling of 1919200111103 in words is "one trillion, nine hundred nineteen billion, two hundred million, one hundred eleven thousand, one hundred three".