20330122312 has 8 divisors (see below), whose sum is σ = 38118979350. Its totient is φ = 10165061152.

The previous prime is 20330122291. The next prime is 20330122313. The reversal of 20330122312 is 21322103302.

It can be written as a sum of positive squares in only one way, i.e., 18000515556 + 2329606756 = 134166^2 + 48266^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20330122312.

It is not an unprimeable number, because it can be changed into a prime (20330122313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270632637 + ... + 1270632652.

Almost surely, 2^20330122312 is an apocalyptic number.

It is an amenable number.

20330122312 is a deficient number, since it is larger than the sum of its proper divisors (17788857038).

20330122312 is a wasteful number, since it uses less digits than its factorization.

20330122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541265295 (or 2541265291 counting only the distinct ones).

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

Adding to 20330122312 its reverse (21322103302), we get a palindrome (41652225614).

The spelling of 20330122312 in words is "twenty billion, three hundred thirty million, one hundred twenty-two thousand, three hundred twelve".