1232312203 has 4 divisors (see below), whose sum is σ = 1297170760. Its totient is φ = 1167453648.

The previous prime is 1232312177. The next prime is 1232312209. The reversal of 1232312203 is 3022132321.

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 1232312203 - 2¹³ = 1232304011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 64858537 = 1232312203 / (1 + 2 + 3 + 2 + 3 + 1 + 2 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232312209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32429250 + ... + 32429287.

It is an arithmetic number, because the mean of its divisors is an integer number (324292690).

Almost surely, 2^1232312203 is an apocalyptic number.

1232312203 is a deficient number, since it is larger than the sum of its proper divisors (64858557).

1232312203 is an equidigital number, since it uses as much as digits as its factorization.

1232312203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64858556.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1232312203 is about 35104.3046220830. The cubic root of 1232312203 is about 1072.1122287618.

Adding to 1232312203 its reverse (3022132321), we get a palindrome (4254444524).

The spelling of 1232312203 in words is "one billion, two hundred thirty-two million, three hundred twelve thousand, two hundred three".