21033014320 has 40 divisors (see below), whose sum is σ = 49030857360. Its totient is φ = 8390995200.

The previous prime is 21033014287. The next prime is 21033014341. The reversal of 21033014320 is 2341033012.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316531 + ... + 377170.

It is an arithmetic number, because the mean of its divisors is an integer number (1225771434).

Almost surely, 2^21033014320 is an apocalyptic number.

21033014320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21033014320 is an abundant number, since it is smaller than the sum of its proper divisors (27997843040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21033014320 is a wasteful number, since it uses less digits than its factorization.

21033014320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694093 (or 694087 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21033014320 its reverse (2341033012), we get a palindrome (23374047332).

The spelling of 21033014320 in words is "twenty-one billion, thirty-three million, fourteen thousand, three hundred twenty".