20330311332 has 96 divisors (see below), whose sum is σ = 49624565760. Its totient is φ = 6472280320.

The previous prime is 20330311319. The next prime is 20330311349. The reversal of 20330311332 is 23311303302.

It is a super-2 number, since 2×20330311332² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20330311299 and 20330311308.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7633033 + ... + 7635695.

It is an arithmetic number, because the mean of its divisors is an integer number (516922560).

Almost surely, 2^20330311332 is an apocalyptic number.

It is an amenable number.

20330311332 is an abundant number, since it is smaller than the sum of its proper divisors (29294254428).

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

20330311332 is a wasteful number, since it uses less digits than its factorization.

20330311332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033 (or 3031 counting only the distinct ones).

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

Adding to 20330311332 its reverse (23311303302), we get a palindrome (43641614634).

The spelling of 20330311332 in words is "twenty billion, three hundred thirty million, three hundred eleven thousand, three hundred thirty-two".