1123253407 has 2 divisors, whose sum is σ = 1123253408. Its totient is φ = 1123253406.

The previous prime is 1123253389. The next prime is 1123253429. The reversal of 1123253407 is 7043523211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123253407 - 2²³ = 1114864799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123253447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561626703 + 561626704.

It is an arithmetic number, because the mean of its divisors is an integer number (561626704).

Almost surely, 2^1123253407 is an apocalyptic number.

1123253407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123253407 is an equidigital number, since it uses as much as digits as its factorization.

1123253407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1123253407 is about 33514.9728778049. The cubic root of 1123253407 is about 1039.5034016579.

Adding to 1123253407 its reverse (7043523211), we get a palindrome (8166776618).

The spelling of 1123253407 in words is "one billion, one hundred twenty-three million, two hundred fifty-three thousand, four hundred seven".