21433200308 has 24 divisors (see below), whose sum is σ = 41485054632. Its totient is φ = 9624887424.

The previous prime is 21433200289. The next prime is 21433200311. The reversal of 21433200308 is 80300233412.

It can be written as a sum of positive squares in 4 ways, for example, as 1861749904 + 19571450404 = 43148^2 + 139898^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5568035 + ... + 5571882.

It is an arithmetic number, because the mean of its divisors is an integer number (1728543943).

Almost surely, 2^21433200308 is an apocalyptic number.

It is an amenable number.

21433200308 is a deficient number, since it is larger than the sum of its proper divisors (20051854324).

21433200308 is a wasteful number, since it uses less digits than its factorization.

21433200308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11139971 (or 11139969 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 21433200308 in words is "twenty-one billion, four hundred thirty-three million, two hundred thousand, three hundred eight".