1123303453 has 2 divisors, whose sum is σ = 1123303454. Its totient is φ = 1123303452.

The previous prime is 1123303439. The next prime is 1123303457. The reversal of 1123303453 is 3543033211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1116428569 + 6874884 = 33413^2 + 2622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123303453 - 2²⁵ = 1089749021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123303457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561651726 + 561651727.

It is an arithmetic number, because the mean of its divisors is an integer number (561651727).

Almost surely, 2^1123303453 is an apocalyptic number.

It is an amenable number.

1123303453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123303453 is an equidigital number, since it uses as much as digits as its factorization.

1123303453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 1123303453 is about 33515.7194910090. The cubic root of 1123303453 is about 1039.5188396153.

Adding to 1123303453 its reverse (3543033211), we get a palindrome (4666336664).

The spelling of 1123303453 in words is "one billion, one hundred twenty-three million, three hundred three thousand, four hundred fifty-three".