1143200423 has 4 divisors (see below), whose sum is σ = 1180077888. Its totient is φ = 1106322960.

The previous prime is 1143200381. The next prime is 1143200437. The reversal of 1143200423 is 3240023411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3240023411 = 34501 ⋅93911.

It is a cyclic number.

It is not a de Polignac number, because 1143200423 - 2⁸ = 1143200167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143200395 and 1143200404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143200923) 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, 18438686 + ... + 18438747.

It is an arithmetic number, because the mean of its divisors is an integer number (295019472).

Almost surely, 2^1143200423 is an apocalyptic number.

1143200423 is a deficient number, since it is larger than the sum of its proper divisors (36877465).

1143200423 is an equidigital number, since it uses as much as digits as its factorization.

1143200423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36877464.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1143200423 is about 33811.2469897222. The cubic root of 1143200423 is about 1045.6205872524.

Adding to 1143200423 its reverse (3240023411), we get a palindrome (4383223834).

The spelling of 1143200423 in words is "one billion, one hundred forty-three million, two hundred thousand, four hundred twenty-three".