11453423503 has 2 divisors, whose sum is σ = 11453423504. Its totient is φ = 11453423502.

The previous prime is 11453423479. The next prime is 11453423563. The reversal of 11453423503 is 30532435411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11453423503 - 2²¹ = 11451326351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11453423563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5726711751 + 5726711752.

It is an arithmetic number, because the mean of its divisors is an integer number (5726711752).

Almost surely, 2^11453423503 is an apocalyptic number.

11453423503 is a deficient number, since it is larger than the sum of its proper divisors (1).

11453423503 is an equidigital number, since it uses as much as digits as its factorization.

11453423503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 11453423503 its reverse (30532435411), we get a palindrome (41985858914).

The spelling of 11453423503 in words is "eleven billion, four hundred fifty-three million, four hundred twenty-three thousand, five hundred three".