12421013342 has 4 divisors (see below), whose sum is σ = 18631520016. Its totient is φ = 6210506670.

The previous prime is 12421013321. The next prime is 12421013351. The reversal of 12421013342 is 24331012421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24331012421 = 79 ⋅307987499.

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, 3105253334 + ... + 3105253337.

It is an arithmetic number, because the mean of its divisors is an integer number (4657880004).

Almost surely, 2^12421013342 is an apocalyptic number.

12421013342 is a deficient number, since it is larger than the sum of its proper divisors (6210506674).

12421013342 is an equidigital number, since it uses as much as digits as its factorization.

12421013342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210506673.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12421013342 its reverse (24331012421), we get a palindrome (36752025763).

The spelling of 12421013342 in words is "twelve billion, four hundred twenty-one million, thirteen thousand, three hundred forty-two".