12450643123 has 8 divisors (see below), whose sum is σ = 12486869696. Its totient is φ = 12414465000.

The previous prime is 12450643111. The next prime is 12450643129. The reversal of 12450643123 is 32134605421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12450643123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12450643129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538348 + ... + 560998.

It is an arithmetic number, because the mean of its divisors is an integer number (1560858712).

Almost surely, 2^12450643123 is an apocalyptic number.

12450643123 is a deficient number, since it is larger than the sum of its proper divisors (36226573).

12450643123 is a wasteful number, since it uses less digits than its factorization.

12450643123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24225.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 12450643123 in words is "twelve billion, four hundred fifty million, six hundred forty-three thousand, one hundred twenty-three".