320111140121 has 4 divisors (see below), whose sum is σ = 320114149044. Its totient is φ = 320108131200.

The previous prime is 320111140093. The next prime is 320111140123. The reversal of 320111140121 is 121041111023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62082698896 + 258028441225 = 249164^2 + 507965^2 .

It is a cyclic number.

It is not a de Polignac number, because 320111140121 - 2¹⁴ = 320111123737 is a prime.

It is a super-2 number, since 2×320111140121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320111140121.

It is not an unprimeable number, because it can be changed into a prime (320111140123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1338800 + ... + 1559681.

It is an arithmetic number, because the mean of its divisors is an integer number (80028537261).

Almost surely, 2^320111140121 is an apocalyptic number.

It is an amenable number.

320111140121 is a deficient number, since it is larger than the sum of its proper divisors (3008923).

320111140121 is a wasteful number, since it uses less digits than its factorization.

320111140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008922.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 320111140121 its reverse (121041111023), we get a palindrome (441152251144).

The spelling of 320111140121 in words is "three hundred twenty billion, one hundred eleven million, one hundred forty thousand, one hundred twenty-one".