1312322105544 has 32 divisors (see below), whose sum is σ = 3282542172000. Its totient is φ = 437209114112.

The previous prime is 1312322105543. The next prime is 1312322105561. The reversal of 1312322105544 is 4455012232131.

It is not an unprimeable number, because it can be changed into a prime (1312322105543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14427954 + ... + 14518625.

It is an arithmetic number, because the mean of its divisors is an integer number (102579442875).

Almost surely, 2^{1312322105544} is an apocalyptic number.

It is an amenable number.

1312322105544 is an abundant number, since it is smaller than the sum of its proper divisors (1970220066456).

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

1312322105544 is a wasteful number, since it uses less digits than its factorization.

1312322105544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28948477 (or 28948473 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1312322105544 its reverse (4455012232131), we get a palindrome (5767334337675).

The spelling of 1312322105544 in words is "one trillion, three hundred twelve billion, three hundred twenty-two million, one hundred five thousand, five hundred forty-four".