1200223023 has 4 divisors (see below), whose sum is σ = 1600297368. Its totient is φ = 800148680.

The previous prime is 1200223019. The next prime is 1200223109. The reversal of 1200223023 is 3203220021.

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 1200223023 - 2² = 1200223019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200222993 and 1200223011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200223223) 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, 200037168 + ... + 200037173.

It is an arithmetic number, because the mean of its divisors is an integer number (400074342).

Almost surely, 2^1200223023 is an apocalyptic number.

1200223023 is a deficient number, since it is larger than the sum of its proper divisors (400074345).

1200223023 is an equidigital number, since it uses as much as digits as its factorization.

1200223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400074344.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1200223023 is about 34644.2350615510. The cubic root of 1200223023 is about 1062.7243976886.

Adding to 1200223023 its reverse (3203220021), we get a palindrome (4403443044).

The spelling of 1200223023 in words is "one billion, two hundred million, two hundred twenty-three thousand, twenty-three".