1321241626012 has 48 divisors (see below), whose sum is σ = 3034430542080. Its totient is φ = 487676332800.

The previous prime is 1321241625989. The next prime is 1321241626057. The reversal of 1321241626012 is 2106261421231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112882189 + ... + 112893892.

It is an arithmetic number, because the mean of its divisors is an integer number (63217302960).

Almost surely, 2^{1321241626012} is an apocalyptic number.

It is an amenable number.

1321241626012 is an abundant number, since it is smaller than the sum of its proper divisors (1713188916068).

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

1321241626012 is a wasteful number, since it uses less digits than its factorization.

1321241626012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225776122 (or 225776120 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 1321241626012 in words is "one trillion, three hundred twenty-one billion, two hundred forty-one million, six hundred twenty-six thousand, twelve".