320001022091 has 8 divisors (see below), whose sum is σ = 334667877120. Its totient is φ = 305396981032.

The previous prime is 320001022013. The next prime is 320001022097. The reversal of 320001022091 is 190220100023.

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-320001022091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320001022097) 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, 15693071 + ... + 15713448.

It is an arithmetic number, because the mean of its divisors is an integer number (41833484640).

Almost surely, 2^320001022091 is an apocalyptic number.

320001022091 is a deficient number, since it is larger than the sum of its proper divisors (14666855029).

320001022091 is a wasteful number, since it uses less digits than its factorization.

320001022091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31406985.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 320001022091 in words is "three hundred twenty billion, one million, twenty-two thousand, ninety-one".