2119405943 has 4 divisors (see below), whose sum is σ = 2122612968. Its totient is φ = 2116198920.

The previous prime is 2119405933. The next prime is 2119405969. The reversal of 2119405943 is 3495049112.

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 2119405943 - 2¹⁶ = 2119340407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2119405897 and 2119405906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119405933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602521 + ... + 1603842.

It is an arithmetic number, because the mean of its divisors is an integer number (530653242).

Almost surely, 2^2119405943 is an apocalyptic number.

2119405943 is a deficient number, since it is larger than the sum of its proper divisors (3207025).

2119405943 is an equidigital number, since it uses as much as digits as its factorization.

2119405943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207024.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 2119405943 is about 46037.0062341156. The cubic root of 2119405943 is about 1284.5116552406.

The spelling of 2119405943 in words is "two billion, one hundred nineteen million, four hundred five thousand, nine hundred forty-three".