12400425223 has 4 divisors (see below), whose sum is σ = 12400750960. Its totient is φ = 12400099488.

The previous prime is 12400425217. The next prime is 12400425263. The reversal of 12400425223 is 32252400421.

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 12400425223 - 2²¹ = 12398328071 is a prime.

It is a super-2 number, since 2×12400425223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400425203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96843 + ... + 184876.

It is an arithmetic number, because the mean of its divisors is an integer number (3100187740).

Almost surely, 2^12400425223 is an apocalyptic number.

12400425223 is a deficient number, since it is larger than the sum of its proper divisors (325737).

12400425223 is an equidigital number, since it uses as much as digits as its factorization.

12400425223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325736.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 12400425223 its reverse (32252400421), we get a palindrome (44652825644).

The spelling of 12400425223 in words is "twelve billion, four hundred million, four hundred twenty-five thousand, two hundred twenty-three".