1161203 has 2 divisors, whose sum is σ = 1161204. Its totient is φ = 1161202.

The previous prime is 1161169. The next prime is 1161217. The reversal of 1161203 is 3021611.

It is an a-pointer prime, because the next prime (1161217) can be obtained adding 1161203 to its sum of digits (14).

It is a strong prime.

It is an emirp because it is prime and its reverse (3021611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161203 - 2¹⁰ = 1160179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580601 + 580602.

It is an arithmetic number, because the mean of its divisors is an integer number (580602).

2^1161203 is an apocalyptic number.

1161203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161203 is an equidigital number, since it uses as much as digits as its factorization.

1161203 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 1161203 is about 1077.5912954363. The cubic root of 1161203 is about 105.1080671205.

Adding to 1161203 its reverse (3021611), we get a palindrome (4182814).

The spelling of 1161203 in words is "one million, one hundred sixty-one thousand, two hundred three".