120200131020121 has 12 divisors (see below), whose sum is σ = 124851433493932. Its totient is φ = 115637416988544.

The previous prime is 120200131020113. The next prime is 120200131020163. The reversal of 120200131020121 is 121020131002021.

It can be written as a sum of positive squares in 6 ways, for example, as 103080165721 + 120097050854400 = 321061^2 + 10958880^2 .

It is not a de Polignac number, because 120200131020121 - 2³ = 120200131020113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120200131020095 and 120200131020104.

It is not an unprimeable number, because it can be changed into a prime (120200131020181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204772710 + ... + 205358863.

Almost surely, 2^{120200131020121} is an apocalyptic number.

It is an amenable number.

120200131020121 is a deficient number, since it is larger than the sum of its proper divisors (4651302473811).

120200131020121 is an frugal number, since it uses more digits than its factorization.

120200131020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410131788 (or 410131699 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 120200131020121 its reverse (121020131002021), we get a palindrome (241220262022142).

The spelling of 120200131020121 in words is "one hundred twenty trillion, two hundred billion, one hundred thirty-one million, twenty thousand, one hundred twenty-one".