1123253429 has 2 divisors, whose sum is σ = 1123253430. Its totient is φ = 1123253428.

The previous prime is 1123253407. The next prime is 1123253447. The reversal of 1123253429 is 9243523211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1043419204 + 79834225 = 32302^2 + 8935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123253429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1123253395 and 1123253404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123253479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561626714 + 561626715.

It is an arithmetic number, because the mean of its divisors is an integer number (561626715).

Almost surely, 2^1123253429 is an apocalyptic number.

It is an amenable number.

1123253429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123253429 is an equidigital number, since it uses as much as digits as its factorization.

1123253429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 1123253429 is about 33514.9732060164. The cubic root of 1123253429 is about 1039.5034084445.

The spelling of 1123253429 in words is "one billion, one hundred twenty-three million, two hundred fifty-three thousand, four hundred twenty-nine".