21346133327 has 6 divisors (see below), whose sum is σ = 22107589608. Its totient is φ = 20610058952.

The previous prime is 21346133293. The next prime is 21346133371. The reversal of 21346133327 is 72333164312.

It is not a de Polignac number, because 21346133327 - 2⁸ = 21346133071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21346133377) 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 5 ways as a sum of consecutive naturals, for example, 12690083 + ... + 12691764.

It is an arithmetic number, because the mean of its divisors is an integer number (3684598268).

Almost surely, 2^21346133327 is an apocalyptic number.

21346133327 is a deficient number, since it is larger than the sum of its proper divisors (761456281).

21346133327 is an equidigital number, since it uses as much as digits as its factorization.

21346133327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25381905 (or 25381876 counting only the distinct ones).

The product of its digits is 54432, while the sum is 35.

Adding to 21346133327 its reverse (72333164312), we get a palindrome (93679297639).

The spelling of 21346133327 in words is "twenty-one billion, three hundred forty-six million, one hundred thirty-three thousand, three hundred twenty-seven".