1321351650306 has 48 divisors (see below), whose sum is σ = 2874078824760. Its totient is φ = 438737990400.

The previous prime is 1321351650301. The next prime is 1321351650313. The reversal of 1321351650306 is 6030561531231.

1321351650306 is a `hidden beast` number, since 1 + 3 + 2 + 135 + 16 + 503 + 0 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 756612927225 + 564738723081 = 869835^2 + 751491^2 .

It is not an unprimeable number, because it can be changed into a prime (1321351650301) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5447206 + ... + 5684606.

Almost surely, 2^{1321351650306} is an apocalyptic number.

1321351650306 is an abundant number, since it is smaller than the sum of its proper divisors (1552727174454).

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

1321351650306 is a wasteful number, since it uses less digits than its factorization.

1321351650306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238611 (or 238608 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The spelling of 1321351650306 in words is "one trillion, three hundred twenty-one billion, three hundred fifty-one million, six hundred fifty thousand, three hundred six".