119823209 has 4 divisors (see below), whose sum is σ = 130716240. Its totient is φ = 108930180.

The previous prime is 119823167. The next prime is 119823233. The reversal of 119823209 is 902328911.

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, and also an emirpimes, since its reverse is a distinct semiprime: 902328911 = 11 ⋅82029901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-119823209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (119823239) 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, 5446499 + ... + 5446520.

It is an arithmetic number, because the mean of its divisors is an integer number (32679060).

Almost surely, 2^119823209 is an apocalyptic number.

It is an amenable number.

119823209 is a deficient number, since it is larger than the sum of its proper divisors (10893031).

119823209 is a wasteful number, since it uses less digits than its factorization.

119823209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10893030.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 119823209 is about 10946.3788076240. The cubic root of 119823209 is about 493.0000713162. Note that the first 4 decimals are identical.

It can be divided in two parts, 119 and 823209, that added together give a palindrome (823328).

The spelling of 119823209 in words is "one hundred nineteen million, eight hundred twenty-three thousand, two hundred nine".