11523531453423 has 8 divisors (see below), whose sum is σ = 16761500295936. Its totient is φ = 6983958456600.

The previous prime is 11523531453419. The next prime is 11523531453431. The reversal of 11523531453423 is 32435413532511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11523531453423 - 2² = 11523531453419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11523531453403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174598961383 + ... + 174598961448.

It is an arithmetic number, because the mean of its divisors is an integer number (2095187536992).

Almost surely, 2^{11523531453423} is an apocalyptic number.

11523531453423 is a deficient number, since it is larger than the sum of its proper divisors (5237968842513).

11523531453423 is a wasteful number, since it uses less digits than its factorization.

11523531453423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349197922845.

The product of its digits is 648000, while the sum is 42.

Adding to 11523531453423 its reverse (32435413532511), we get a palindrome (43958944985934).

The spelling of 11523531453423 in words is "eleven trillion, five hundred twenty-three billion, five hundred thirty-one million, four hundred fifty-three thousand, four hundred twenty-three".