305104212303421 has 2 divisors, whose sum is σ = 305104212303422. Its totient is φ = 305104212303420.

The previous prime is 305104212303403. The next prime is 305104212303431. The reversal of 305104212303421 is 124303212401503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191748797380921 + 113355414922500 = 13847339^2 + 10646850^2 .

It is a cyclic number.

It is not a de Polignac number, because 305104212303421 - 2⁹ = 305104212302909 is a prime.

It is a super-3 number, since 3×305104212303421³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305104212303431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152552106151710 + 152552106151711.

It is an arithmetic number, because the mean of its divisors is an integer number (152552106151711).

Almost surely, 2^{305104212303421} is an apocalyptic number.

It is an amenable number.

305104212303421 is a deficient number, since it is larger than the sum of its proper divisors (1).

305104212303421 is an equidigital number, since it uses as much as digits as its factorization.

305104212303421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 305104212303421 its reverse (124303212401503), we get a palindrome (429407424704924).

The spelling of 305104212303421 in words is "three hundred five trillion, one hundred four billion, two hundred twelve million, three hundred three thousand, four hundred twenty-one".