1231214203 has 2 divisors, whose sum is σ = 1231214204. Its totient is φ = 1231214202.

The previous prime is 1231214189. The next prime is 1231214251. The reversal of 1231214203 is 3024121321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231214203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231214263) 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, 615607101 + 615607102.

It is an arithmetic number, because the mean of its divisors is an integer number (615607102).

Almost surely, 2^1231214203 is an apocalyptic number.

1231214203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231214203 is an equidigital number, since it uses as much as digits as its factorization.

1231214203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1231214203 is about 35088.6620292082. The cubic root of 1231214203 is about 1071.7937139615.

Adding to 1231214203 its reverse (3024121321), we get a palindrome (4255335524).

The spelling of 1231214203 in words is "one billion, two hundred thirty-one million, two hundred fourteen thousand, two hundred three".