20130333312 has 64 divisors (see below), whose sum is σ = 54269344800. Its totient is φ = 6609951744.

The previous prime is 20130333271. The next prime is 20130333317. The reversal of 20130333312 is 21333303102.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (20130333317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365487 + ... + 416942.

Almost surely, 2^20130333312 is an apocalyptic number.

It is an amenable number.

20130333312 is an abundant number, since it is smaller than the sum of its proper divisors (34139011488).

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

20130333312 is an equidigital number, since it uses as much as digits as its factorization.

20130333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782513 (or 782501 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20130333312 its reverse (21333303102), we get a palindrome (41463636414).

The spelling of 20130333312 in words is "twenty billion, one hundred thirty million, three hundred thirty-three thousand, three hundred twelve".