120131010121 has 2 divisors, whose sum is σ = 120131010122. Its totient is φ = 120131010120.

The previous prime is 120131010113. The next prime is 120131010143. The reversal of 120131010121 is 121010131021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120089278521 + 41731600 = 346539^2 + 6460^2 .

It is a cyclic number.

It is not a de Polignac number, because 120131010121 - 2³ = 120131010113 is a prime.

It is not a weakly prime, because it can be changed into another prime (120131010101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60065505060 + 60065505061.

It is an arithmetic number, because the mean of its divisors is an integer number (60065505061).

Almost surely, 2^120131010121 is an apocalyptic number.

It is an amenable number.

120131010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120131010121 is an equidigital number, since it uses as much as digits as its factorization.

120131010121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 120131010121 its reverse (121010131021), we get a palindrome (241141141142).

The spelling of 120131010121 in words is "one hundred twenty billion, one hundred thirty-one million, ten thousand, one hundred twenty-one".