12340423754 has 4 divisors (see below), whose sum is σ = 18510635634. Its totient is φ = 6170211876.

The previous prime is 12340423747. The next prime is 12340423763. The reversal of 12340423754 is 45732404321.

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

It can be written as a sum of positive squares in only one way, i.e., 11691448129 + 648975625 = 108127^2 + 25475^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085105937 + ... + 3085105940.

Almost surely, 2^12340423754 is an apocalyptic number.

12340423754 is a deficient number, since it is larger than the sum of its proper divisors (6170211880).

12340423754 is an equidigital number, since it uses as much as digits as its factorization.

12340423754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6170211879.

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 12340423754 in words is "twelve billion, three hundred forty million, four hundred twenty-three thousand, seven hundred fifty-four".