20033122312 has 32 divisors (see below), whose sum is σ = 44312901120. Its totient is φ = 8308667520.

The previous prime is 20033122289. The next prime is 20033122313. The reversal of 20033122312 is 21322133002.

It is a self number, because there is not a number n which added to its sum of digits gives 20033122312.

It is not an unprimeable number, because it can be changed into a prime (20033122313) 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, 5768173 + ... + 5771644.

It is an arithmetic number, because the mean of its divisors is an integer number (1384778160).

Almost surely, 2^20033122312 is an apocalyptic number.

It is an amenable number.

20033122312 is an abundant number, since it is smaller than the sum of its proper divisors (24279778808).

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

20033122312 is a wasteful number, since it uses less digits than its factorization.

20033122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11539861 (or 11539857 counting only the distinct ones).

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

Adding to 20033122312 its reverse (21322133002), we get a palindrome (41355255314).

The spelling of 20033122312 in words is "twenty billion, thirty-three million, one hundred twenty-two thousand, three hundred twelve".