320021121099 has 8 divisors (see below), whose sum is σ = 427246829712. Its totient is φ = 213071413280.

The previous prime is 320021121097. The next prime is 320021121137. The reversal of 320021121099 is 990121120023.

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 320021121099 - 2¹ = 320021121097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320021121097) 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, 68997492 + ... + 69002129.

It is an arithmetic number, because the mean of its divisors is an integer number (53405853714).

Almost surely, 2^320021121099 is an apocalyptic number.

320021121099 is a deficient number, since it is larger than the sum of its proper divisors (107225708613).

320021121099 is a wasteful number, since it uses less digits than its factorization.

320021121099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138000397.

The product of its (nonzero) digits is 1944, while the sum is 30.

The spelling of 320021121099 in words is "three hundred twenty billion, twenty-one million, one hundred twenty-one thousand, ninety-nine".