12974381421 has 8 divisors (see below), whose sum is σ = 17299703424. Its totient is φ = 8649323520.

The previous prime is 12974381417. The next prime is 12974381429. The reversal of 12974381421 is 12418347921.

12974381421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12974381421 - 2² = 12974381417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12974381429) 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 7 ways as a sum of consecutive naturals, for example, 144540 + ... + 216426.

It is an arithmetic number, because the mean of its divisors is an integer number (2162462928).

Almost surely, 2^12974381421 is an apocalyptic number.

It is an amenable number.

12974381421 is a deficient number, since it is larger than the sum of its proper divisors (4325322003).

12974381421 is an equidigital number, since it uses as much as digits as its factorization.

12974381421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132051.

The product of its digits is 96768, while the sum is 42.

The spelling of 12974381421 in words is "twelve billion, nine hundred seventy-four million, three hundred eighty-one thousand, four hundred twenty-one".