12353362421 has 4 divisors (see below), whose sum is σ = 12353658912. Its totient is φ = 12353065932.

The previous prime is 12353362393. The next prime is 12353362423. The reversal of 12353362421 is 12426335321.

12353362421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12353362421 is a prime.

It is a super-3 number, since 3×12353362421³ (a number of 31 digits) contains 333 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 (12353362423) 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 3 ways as a sum of consecutive naturals, for example, 73025 + ... + 173318.

It is an arithmetic number, because the mean of its divisors is an integer number (3088414728).

Almost surely, 2^12353362421 is an apocalyptic number.

It is an amenable number.

12353362421 is a deficient number, since it is larger than the sum of its proper divisors (296491).

12353362421 is an equidigital number, since it uses as much as digits as its factorization.

12353362421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296490.

The product of its digits is 25920, while the sum is 32.

Adding to 12353362421 its reverse (12426335321), we get a palindrome (24779697742).

The spelling of 12353362421 in words is "twelve billion, three hundred fifty-three million, three hundred sixty-two thousand, four hundred twenty-one".