320140203111021 has 8 divisors (see below), whose sum is σ = 427478572824480. Its totient is φ = 213114317735792.

The previous prime is 320140203110927. The next prime is 320140203111107. The reversal of 320140203111021 is 120111302041023.

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 320140203111021 - 2¹⁰ = 320140203109997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320140203191021) 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, 78121082166 + ... + 78121086263.

It is an arithmetic number, because the mean of its divisors is an integer number (53434821603060).

Almost surely, 2^{320140203111021} is an apocalyptic number.

It is an amenable number.

320140203111021 is a deficient number, since it is larger than the sum of its proper divisors (107338369713459).

320140203111021 is a wasteful number, since it uses less digits than its factorization.

320140203111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156242169115.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 320140203111021 its reverse (120111302041023), we get a palindrome (440251505152044).

The spelling of 320140203111021 in words is "three hundred twenty trillion, one hundred forty billion, two hundred three million, one hundred eleven thousand, twenty-one".