1321351650352 has 20 divisors (see below), whose sum is σ = 2560138783240. Its totient is φ = 660670674048.

The previous prime is 1321351650323. The next prime is 1321351650389. The reversal of 1321351650352 is 2530561531231.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2595403 + ... + 3062485.

It is an arithmetic number, because the mean of its divisors is an integer number (128006939162).

Almost surely, 2^{1321351650352} is an apocalyptic number.

It is an amenable number.

1321351650352 is a deficient number, since it is larger than the sum of its proper divisors (1238787132888).

1321351650352 is a wasteful number, since it uses less digits than its factorization.

1321351650352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643900 (or 643894 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 1321351650352 in words is "one trillion, three hundred twenty-one billion, three hundred fifty-one million, six hundred fifty thousand, three hundred fifty-two".