20133223312 has 20 divisors (see below), whose sum is σ = 39501896320. Its totient is φ = 9939185568.

The previous prime is 20133223283. The next prime is 20133223321. The reversal of 20133223312 is 21332233102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7962828 + ... + 7965355.

It is an arithmetic number, because the mean of its divisors is an integer number (1975094816).

Almost surely, 2^20133223312 is an apocalyptic number.

It is an amenable number.

20133223312 is a deficient number, since it is larger than the sum of its proper divisors (19368673008).

20133223312 is a wasteful number, since it uses less digits than its factorization.

20133223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15928270 (or 15928264 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20133223312 its reverse (21332233102), we get a palindrome (41465456414).

The spelling of 20133223312 in words is "twenty billion, one hundred thirty-three million, two hundred twenty-three thousand, three hundred twelve".