1203133361 has 2 divisors, whose sum is σ = 1203133362. Its totient is φ = 1203133360.

The previous prime is 1203133313. The next prime is 1203133363. The reversal of 1203133361 is 1633313021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 956046400 + 247086961 = 30920^2 + 15719^2 .

It is an emirp because it is prime and its reverse (1633313021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1203133361 - 2¹⁸ = 1202871217 is a prime.

Together with 1203133363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1203133363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601566680 + 601566681.

It is an arithmetic number, because the mean of its divisors is an integer number (601566681).

Almost surely, 2^1203133361 is an apocalyptic number.

It is an amenable number.

1203133361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203133361 is an equidigital number, since it uses as much as digits as its factorization.

1203133361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 1203133361 is about 34686.2128373796. The cubic root of 1203133361 is about 1063.5826800221.

Adding to 1203133361 its reverse (1633313021), we get a palindrome (2836446382).

The spelling of 1203133361 in words is "one billion, two hundred three million, one hundred thirty-three thousand, three hundred sixty-one".