20122130312 has 16 divisors (see below), whose sum is σ = 37733577360. Its totient is φ = 10059843024.

The previous prime is 20122130311. The next prime is 20122130383. The reversal of 20122130312 is 21303122102.

It is not an unprimeable number, because it can be changed into a prime (20122130311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80798 + ... + 216269.

It is an arithmetic number, because the mean of its divisors is an integer number (2358348585).

Almost surely, 2^20122130312 is an apocalyptic number.

It is an amenable number.

20122130312 is a deficient number, since it is larger than the sum of its proper divisors (17611447048).

20122130312 is a wasteful number, since it uses less digits than its factorization.

20122130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305540 (or 305536 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20122130312 its reverse (21303122102), we get a palindrome (41425252414).

The spelling of 20122130312 in words is "twenty billion, one hundred twenty-two million, one hundred thirty thousand, three hundred twelve".