2119381930 has 8 divisors (see below), whose sum is σ = 3814887492. Its totient is φ = 847752768.

The previous prime is 2119381889. The next prime is 2119381931. The reversal of 2119381930 is 391839112.

It can be written as a sum of positive squares in 2 ways, for example, as 1987108929 + 132273001 = 44577^2 + 11501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2119381930.

It is not an unprimeable number, because it can be changed into a prime (2119381931) 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, 105969087 + ... + 105969106.

Almost surely, 2^2119381930 is an apocalyptic number.

2119381930 is a deficient number, since it is larger than the sum of its proper divisors (1695505562).

2119381930 is a wasteful number, since it uses less digits than its factorization.

2119381930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211938200.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 2119381930 is about 46036.7454323174. The cubic root of 2119381930 is about 1284.5068040235.

The spelling of 2119381930 in words is "two billion, one hundred nineteen million, three hundred eighty-one thousand, nine hundred thirty".