1312504243122 has 32 divisors (see below), whose sum is σ = 2700186552000. Its totient is φ = 425144560320.

The previous prime is 1312504243121. The next prime is 1312504243153. The reversal of 1312504243122 is 2213424052131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312504243122.

It is not an unprimeable number, because it can be changed into a prime (1312504243121) 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, 21572497 + ... + 21633252.

It is an arithmetic number, because the mean of its divisors is an integer number (84380829750).

Almost surely, 2^{1312504243122} is an apocalyptic number.

1312504243122 is an abundant number, since it is smaller than the sum of its proper divisors (1387682308878).

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

1312504243122 is a wasteful number, since it uses less digits than its factorization.

1312504243122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43205898.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1312504243122 its reverse (2213424052131), we get a palindrome (3525928295253).

The spelling of 1312504243122 in words is "one trillion, three hundred twelve billion, five hundred four million, two hundred forty-three thousand, one hundred twenty-two".