11523683123 has 4 divisors (see below), whose sum is σ = 12024712848. Its totient is φ = 11022653400.

The previous prime is 11523683113. The next prime is 11523683131. The reversal of 11523683123 is 32138632511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11523683123 - 2⁸ = 11523682867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11523683113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250514828 + ... + 250514873.

It is an arithmetic number, because the mean of its divisors is an integer number (3006178212).

Almost surely, 2^11523683123 is an apocalyptic number.

11523683123 is a deficient number, since it is larger than the sum of its proper divisors (501029725).

11523683123 is an equidigital number, since it uses as much as digits as its factorization.

11523683123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501029724.

The product of its digits is 25920, while the sum is 35.

The spelling of 11523683123 in words is "eleven billion, five hundred twenty-three million, six hundred eighty-three thousand, one hundred twenty-three".