120331011121 has 2 divisors, whose sum is σ = 120331011122. Its totient is φ = 120331011120.

The previous prime is 120331011079. The next prime is 120331011127. The reversal of 120331011121 is 121110133021.

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., 66118408225 + 54212602896 = 257135^2 + 232836^2 .

It is a cyclic number.

It is not a de Polignac number, because 120331011121 - 2⁹ = 120331010609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120331011095 and 120331011104.

It is not a weakly prime, because it can be changed into another prime (120331011127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60165505560 + 60165505561.

It is an arithmetic number, because the mean of its divisors is an integer number (60165505561).

Almost surely, 2^120331011121 is an apocalyptic number.

It is an amenable number.

120331011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120331011121 is an equidigital number, since it uses as much as digits as its factorization.

120331011121 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 120331011121 its reverse (121110133021), we get a palindrome (241441144142).

The spelling of 120331011121 in words is "one hundred twenty billion, three hundred thirty-one million, eleven thousand, one hundred twenty-one".