1321213321109 has 8 divisors (see below), whose sum is σ = 1476477858240. Its totient is φ = 1171807823200.

The previous prime is 1321213321093. The next prime is 1321213321133. The reversal of 1321213321109 is 9011233121231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321213321109 - 2⁴ = 1321213321093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321213320109) 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, 1464759329 + ... + 1464760230.

It is an arithmetic number, because the mean of its divisors is an integer number (184559732280).

Almost surely, 2^{1321213321109} is an apocalyptic number.

It is an amenable number.

1321213321109 is a deficient number, since it is larger than the sum of its proper divisors (155264537131).

1321213321109 is a wasteful number, since it uses less digits than its factorization.

1321213321109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929519611.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 1321213321109 in words is "one trillion, three hundred twenty-one billion, two hundred thirteen million, three hundred twenty-one thousand, one hundred nine".