1213004223 has 6 divisors (see below), whose sum is σ = 1752117224. Its totient is φ = 808669476.

The previous prime is 1213004209. The next prime is 1213004227. The reversal of 1213004223 is 3224003121.

It is not a de Polignac number, because 1213004223 - 2⁶ = 1213004159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213004196 and 1213004205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213004227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67389115 + ... + 67389132.

Almost surely, 2^1213004223 is an apocalyptic number.

1213004223 is a deficient number, since it is larger than the sum of its proper divisors (539113001).

1213004223 is a wasteful number, since it uses less digits than its factorization.

1213004223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134778253 (or 134778250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1213004223 is about 34828.2101607303. The cubic root of 1213004223 is about 1066.4834105861.

Adding to 1213004223 its reverse (3224003121), we get a palindrome (4437007344).

The spelling of 1213004223 in words is "one billion, two hundred thirteen million, four thousand, two hundred twenty-three".