12400500523 has 4 divisors (see below), whose sum is σ = 12414576888. Its totient is φ = 12386424160.

The previous prime is 12400500521. The next prime is 12400500529. The reversal of 12400500523 is 32500500421.

12400500523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12400500523 - 2¹ = 12400500521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12400500494 and 12400500503.

It is not an unprimeable number, because it can be changed into a prime (12400500521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7036861 + ... + 7038622.

It is an arithmetic number, because the mean of its divisors is an integer number (3103644222).

Almost surely, 2^12400500523 is an apocalyptic number.

12400500523 is a deficient number, since it is larger than the sum of its proper divisors (14076365).

12400500523 is an equidigital number, since it uses as much as digits as its factorization.

12400500523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076364.

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 12400500523 in words is "twelve billion, four hundred million, five hundred thousand, five hundred twenty-three".