1234431203 has 2 divisors, whose sum is σ = 1234431204. Its totient is φ = 1234431202.

The previous prime is 1234431199. The next prime is 1234431271. The reversal of 1234431203 is 3021344321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1234431203 - 2² = 1234431199 is a prime.

It is not a weakly prime, because it can be changed into another prime (1234431103) 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 as a sum of consecutive naturals, namely, 617215601 + 617215602.

It is an arithmetic number, because the mean of its divisors is an integer number (617215602).

Almost surely, 2^1234431203 is an apocalyptic number.

1234431203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234431203 is an equidigital number, since it uses as much as digits as its factorization.

1234431203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1234431203 is about 35134.4731424850. The cubic root of 1234431203 is about 1072.7263872254.

Adding to 1234431203 its reverse (3021344321), we get a palindrome (4255775524).

The spelling of 1234431203 in words is "one billion, two hundred thirty-four million, four hundred thirty-one thousand, two hundred three".