20031020322112 has 14 divisors (see below), whose sum is σ = 39749055951818. Its totient is φ = 10015510161024.

The previous prime is 20031020322083. The next prime is 20031020322113. The reversal of 20031020322112 is 21122302013002.

It can be written as a sum of positive squares in only one way, i.e., 19908872868096 + 122147454016 = 4461936^2 + 349496^2 .

It is a super-2 number, since 2×20031020322112² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20031020322112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031020322113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156492346203 + ... + 156492346330.

Almost surely, 2^{20031020322112} is an apocalyptic number.

It is an amenable number.

20031020322112 is a deficient number, since it is larger than the sum of its proper divisors (19718035629706).

20031020322112 is an equidigital number, since it uses as much as digits as its factorization.

20031020322112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312984692545 (or 312984692535 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20031020322112 its reverse (21122302013002), we get a palindrome (41153322335114).

The spelling of 20031020322112 in words is "twenty trillion, thirty-one billion, twenty million, three hundred twenty-two thousand, one hundred twelve".