12421473254 has 4 divisors (see below), whose sum is σ = 18632209884. Its totient is φ = 6210736626.

The previous prime is 12421473223. The next prime is 12421473277. The reversal of 12421473254 is 45237412421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45237412421 = 43 ⋅1052032847.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3105368312 + ... + 3105368315.

It is an arithmetic number, because the mean of its divisors is an integer number (4658052471).

Almost surely, 2^12421473254 is an apocalyptic number.

12421473254 is a deficient number, since it is larger than the sum of its proper divisors (6210736630).

12421473254 is an equidigital number, since it uses as much as digits as its factorization.

12421473254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210736629.

The product of its digits is 53760, while the sum is 35.

Adding to 12421473254 its reverse (45237412421), we get a palindrome (57658885675).

The spelling of 12421473254 in words is "twelve billion, four hundred twenty-one million, four hundred seventy-three thousand, two hundred fifty-four".