1200204423 has 24 divisors (see below), whose sum is σ = 1973462400. Its totient is φ = 695769360.

The previous prime is 1200204413. The next prime is 1200204431. The reversal of 1200204423 is 3244020021.

1200204423 is a `hidden beast` number, since 1 + 200 + 20 + 442 + 3 = 666.

It is not a de Polignac number, because 1200204423 - 2⁵ = 1200204391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200204396 and 1200204405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200204413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261273 + ... + 265826.

It is an arithmetic number, because the mean of its divisors is an integer number (82227600).

Almost surely, 2^1200204423 is an apocalyptic number.

1200204423 is a deficient number, since it is larger than the sum of its proper divisors (773257977).

1200204423 is a wasteful number, since it uses less digits than its factorization.

1200204423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527139 (or 527136 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1200204423 is about 34643.9666175800. The cubic root of 1200204423 is about 1062.7189079378.

Adding to 1200204423 its reverse (3244020021), we get a palindrome (4444224444).

The spelling of 1200204423 in words is "one billion, two hundred million, two hundred four thousand, four hundred twenty-three".