320101311121 has 2 divisors, whose sum is σ = 320101311122. Its totient is φ = 320101311120.

The previous prime is 320101311083. The next prime is 320101311133. The reversal of 320101311121 is 121113101023.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291729614400 + 28371696721 = 540120^2 + 168439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320101311121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320101311095 and 320101311104.

It is not a weakly prime, because it can be changed into another prime (320101312121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160050655560 + 160050655561.

It is an arithmetic number, because the mean of its divisors is an integer number (160050655561).

Almost surely, 2^320101311121 is an apocalyptic number.

It is an amenable number.

320101311121 is a deficient number, since it is larger than the sum of its proper divisors (1).

320101311121 is an equidigital number, since it uses as much as digits as its factorization.

320101311121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 320101311121 its reverse (121113101023), we get a palindrome (441214412144).

The spelling of 320101311121 in words is "three hundred twenty billion, one hundred one million, three hundred eleven thousand, one hundred twenty-one".