1200230403 has 4 divisors (see below), whose sum is σ = 1600307208. Its totient is φ = 800153600.

The previous prime is 1200230401. The next prime is 1200230407. The reversal of 1200230403 is 3040320021.

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 1200230403 - 2¹ = 1200230401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200230401) 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, 200038398 + ... + 200038403.

It is an arithmetic number, because the mean of its divisors is an integer number (400076802).

Almost surely, 2^1200230403 is an apocalyptic number.

1200230403 is a deficient number, since it is larger than the sum of its proper divisors (400076805).

1200230403 is an equidigital number, since it uses as much as digits as its factorization.

1200230403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400076804.

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

The square root of 1200230403 is about 34644.3415726147. The cubic root of 1200230403 is about 1062.7265758643.

Adding to 1200230403 its reverse (3040320021), we get a palindrome (4240550424).

The spelling of 1200230403 in words is "one billion, two hundred million, two hundred thirty thousand, four hundred three".