120203331121 has 2 divisors, whose sum is σ = 120203331122. Its totient is φ = 120203331120.

The previous prime is 120203331107. The next prime is 120203331151. The reversal of 120203331121 is 121133302021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62668112896 + 57535218225 = 250336^2 + 239865^2 .

It is a cyclic number.

It is not a de Polignac number, because 120203331121 - 2⁵ = 120203331089 is a prime.

It is not a weakly prime, because it can be changed into another prime (120203331151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60101665560 + 60101665561.

It is an arithmetic number, because the mean of its divisors is an integer number (60101665561).

Almost surely, 2^120203331121 is an apocalyptic number.

It is an amenable number.

120203331121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120203331121 is an equidigital number, since it uses as much as digits as its factorization.

120203331121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 120203331121 its reverse (121133302021), we get a palindrome (241336633142).

The spelling of 120203331121 in words is "one hundred twenty billion, two hundred three million, three hundred thirty-one thousand, one hundred twenty-one".