320012103121 has 2 divisors, whose sum is σ = 320012103122. Its totient is φ = 320012103120.

The previous prime is 320012103041. The next prime is 320012103221. The reversal of 320012103121 is 121301210023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163442318400 + 156569784721 = 404280^2 + 395689^2 .

It is a cyclic number.

It is not a de Polignac number, because 320012103121 - 2²⁵ = 319978548689 is a prime.

It is a super-2 number, since 2×320012103121² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320012103095 and 320012103104.

It is not a weakly prime, because it can be changed into another prime (320012103221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160006051560 + 160006051561.

It is an arithmetic number, because the mean of its divisors is an integer number (160006051561).

Almost surely, 2^320012103121 is an apocalyptic number.

It is an amenable number.

320012103121 is a deficient number, since it is larger than the sum of its proper divisors (1).

320012103121 is an equidigital number, since it uses as much as digits as its factorization.

320012103121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 320012103121 its reverse (121301210023), we get a palindrome (441313313144).

The spelling of 320012103121 in words is "three hundred twenty billion, twelve million, one hundred three thousand, one hundred twenty-one".