331300121 has 2 divisors, whose sum is σ = 331300122. Its totient is φ = 331300120.

The previous prime is 331300117. The next prime is 331300139. The reversal of 331300121 is 121003133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204490000 + 126810121 = 14300^2 + 11261^2 .

It is a cyclic number.

It is not a de Polignac number, because 331300121 - 2² = 331300117 is a prime.

It is a super-2 number, since 2×331300121² = 219519540349229282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331300096 and 331300105.

It is not a weakly prime, because it can be changed into another prime (331300621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165650060 + 165650061.

It is an arithmetic number, because the mean of its divisors is an integer number (165650061).

Almost surely, 2^331300121 is an apocalyptic number.

It is an amenable number.

331300121 is a deficient number, since it is larger than the sum of its proper divisors (1).

331300121 is an equidigital number, since it uses as much as digits as its factorization.

331300121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 331300121 is about 18201.6516008850. The cubic root of 331300121 is about 691.9486475809.

Adding to 331300121 its reverse (121003133), we get a palindrome (452303254).

The spelling of 331300121 in words is "three hundred thirty-one million, three hundred thousand, one hundred twenty-one".