20312103013122 has 32 divisors (see below), whose sum is σ = 42390836691840. Its totient is φ = 6476267571840.

The previous prime is 20312103013121. The next prime is 20312103013133. The reversal of 20312103013122 is 22131030121302.

It is not an unprimeable number, because it can be changed into a prime (20312103013121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17547654 + ... + 18669342.

It is an arithmetic number, because the mean of its divisors is an integer number (1324713646620).

Almost surely, 2^{20312103013122} is an apocalyptic number.

20312103013122 is an abundant number, since it is smaller than the sum of its proper divisors (22078733678718).

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

20312103013122 is a wasteful number, since it uses less digits than its factorization.

20312103013122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252938.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20312103013122 its reverse (22131030121302), we get a palindrome (42443133134424).

The spelling of 20312103013122 in words is "twenty trillion, three hundred twelve billion, one hundred three million, thirteen thousand, one hundred twenty-two".