1312500212544 has 56 divisors (see below), whose sum is σ = 3483968554528. Its totient is φ = 436074969600.

The previous prime is 1312500212521. The next prime is 1312500212599. The reversal of 1312500212544 is 4452120052131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11074507 + ... + 11192394.

It is an arithmetic number, because the mean of its divisors is an integer number (62213724188).

Almost surely, 2^{1312500212544} is an apocalyptic number.

It is an amenable number.

1312500212544 is an abundant number, since it is smaller than the sum of its proper divisors (2171468341984).

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

1312500212544 is a wasteful number, since it uses less digits than its factorization.

1312500212544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22267223 (or 22267213 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1312500212544 its reverse (4452120052131), we get a palindrome (5764620264675).

The spelling of 1312500212544 in words is "one trillion, three hundred twelve billion, five hundred million, two hundred twelve thousand, five hundred forty-four".