320111113001 has 4 divisors (see below), whose sum is σ = 320115986004. Its totient is φ = 320106240000.

The previous prime is 320111112977. The next prime is 320111113009. The reversal of 320111113001 is 100311111023.

It is a happy number.

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 184642949401 + 135468163600 = 429701^2 + 368060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320111113001 is a prime.

It is a super-2 number, since 2×320111113001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (320111113009) 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, 2336600 + ... + 2469801.

It is an arithmetic number, because the mean of its divisors is an integer number (80028996501).

Almost surely, 2^320111113001 is an apocalyptic number.

It is an amenable number.

320111113001 is a deficient number, since it is larger than the sum of its proper divisors (4873003).

320111113001 is an equidigital number, since it uses as much as digits as its factorization.

320111113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873002.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 320111113001 its reverse (100311111023), we get a palindrome (420422224024).

The spelling of 320111113001 in words is "three hundred twenty billion, one hundred eleven million, one hundred thirteen thousand, one".