20312033320 has 64 divisors (see below), whose sum is σ = 45940608000. Its totient is φ = 8082528768.

The previous prime is 20312033317. The next prime is 20312033323. The reversal of 20312033320 is 2333021302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20312033317) and next prime (20312033323).

It is not an unprimeable number, because it can be changed into a prime (20312033323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6876964 + ... + 6879916.

It is an arithmetic number, because the mean of its divisors is an integer number (717822000).

Almost surely, 2^20312033320 is an apocalyptic number.

20312033320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312033320 is an abundant number, since it is smaller than the sum of its proper divisors (25628574680).

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

20312033320 is a wasteful number, since it uses less digits than its factorization.

20312033320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3802 (or 3798 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20312033320 its reverse (2333021302), we get a palindrome (22645054622).

The spelling of 20312033320 in words is "twenty billion, three hundred twelve million, thirty-three thousand, three hundred twenty".