1203331253 has 2 divisors, whose sum is σ = 1203331254. Its totient is φ = 1203331252.

The previous prime is 1203331229. The next prime is 1203331267. The reversal of 1203331253 is 3521333021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 936237604 + 267093649 = 30598^2 + 16343^2 .

It is an emirp because it is prime and its reverse (3521333021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1203331253 - 2¹⁰ = 1203330229 is a prime.

It is a super-2 number, since 2×1203331253² = 2896012208893100018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203331453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601665626 + 601665627.

It is an arithmetic number, because the mean of its divisors is an integer number (601665627).

Almost surely, 2^1203331253 is an apocalyptic number.

It is an amenable number.

1203331253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203331253 is an equidigital number, since it uses as much as digits as its factorization.

1203331253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 1203331253 is about 34689.0653232398. The cubic root of 1203331253 is about 1063.6409897024.

Adding to 1203331253 its reverse (3521333021), we get a palindrome (4724664274).

The spelling of 1203331253 in words is "one billion, two hundred three million, three hundred thirty-one thousand, two hundred fifty-three".