12304149421 has 2 divisors, whose sum is σ = 12304149422. Its totient is φ = 12304149420.

The previous prime is 12304149413. The next prime is 12304149463. The reversal of 12304149421 is 12494140321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10886626921 + 1417522500 = 104339^2 + 37650^2 .

It is a cyclic number.

It is not a de Polignac number, because 12304149421 - 2³ = 12304149413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12304149401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152074710 + 6152074711.

It is an arithmetic number, because the mean of its divisors is an integer number (6152074711).

Almost surely, 2^12304149421 is an apocalyptic number.

It is an amenable number.

12304149421 is a deficient number, since it is larger than the sum of its proper divisors (1).

12304149421 is an equidigital number, since it uses as much as digits as its factorization.

12304149421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 12304149421 its reverse (12494140321), we get a palindrome (24798289742).

The spelling of 12304149421 in words is "twelve billion, three hundred four million, one hundred forty-nine thousand, four hundred twenty-one".