1231002203 has 2 divisors, whose sum is σ = 1231002204. Its totient is φ = 1231002202.

The previous prime is 1231002169. The next prime is 1231002211. The reversal of 1231002203 is 3022001321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231002203 - 2¹² = 1230998107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231002263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615501101 + 615501102.

It is an arithmetic number, because the mean of its divisors is an integer number (615501102).

Almost surely, 2^1231002203 is an apocalyptic number.

1231002203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231002203 is an equidigital number, since it uses as much as digits as its factorization.

1231002203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1231002203 is about 35085.6409803213. The cubic root of 1231002203 is about 1071.7321938486.

Adding to 1231002203 its reverse (3022001321), we get a palindrome (4253003524).

The spelling of 1231002203 in words is "one billion, two hundred thirty-one million, two thousand, two hundred three".