1230111203 has 2 divisors, whose sum is σ = 1230111204. Its totient is φ = 1230111202.

The previous prime is 1230111187. The next prime is 1230111257. The reversal of 1230111203 is 3021110321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230111203 - 2⁴ = 1230111187 is a prime.

It is a super-2 number, since 2×1230111203² = 3026347143492214418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1230111283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615055601 + 615055602.

It is an arithmetic number, because the mean of its divisors is an integer number (615055602).

Almost surely, 2^1230111203 is an apocalyptic number.

1230111203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230111203 is an equidigital number, since it uses as much as digits as its factorization.

1230111203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1230111203 is about 35072.9411797756. The cubic root of 1230111203 is about 1071.4735580087.

Adding to 1230111203 its reverse (3021110321), we get a palindrome (4251221524).

The spelling of 1230111203 in words is "one billion, two hundred thirty million, one hundred eleven thousand, two hundred three".