1323120202109 has 8 divisors (see below), whose sum is σ = 1327714123392. Its totient is φ = 1318528617120.

The previous prime is 1323120202099. The next prime is 1323120202123. The reversal of 1323120202109 is 9012020213231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323120202109 is a prime.

It is a super-2 number, since 2×1323120202109² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323120202189) 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, 554402 + ... + 1718604.

It is an arithmetic number, because the mean of its divisors is an integer number (165964265424).

Almost surely, 2^{1323120202109} is an apocalyptic number.

It is an amenable number.

1323120202109 is a deficient number, since it is larger than the sum of its proper divisors (4593921283).

1323120202109 is a wasteful number, since it uses less digits than its factorization.

1323120202109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168147.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 1323120202109 in words is "one trillion, three hundred twenty-three billion, one hundred twenty million, two hundred two thousand, one hundred nine".