121132120113 has 12 divisors (see below), whose sum is σ = 181448937488. Its totient is φ = 80754746580.

The previous prime is 121132120099. The next prime is 121132120159. The reversal of 121132120113 is 311021231121.

121132120113 is a `hidden beast` number, since 1 + 211 + 321 + 20 + 113 = 666.

It is not a de Polignac number, because 121132120113 - 2⁶ = 121132120049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121132120013) 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, 249242803 + ... + 249243288.

Almost surely, 2^121132120113 is an apocalyptic number.

It is an amenable number.

121132120113 is a deficient number, since it is larger than the sum of its proper divisors (60316817375).

121132120113 is an frugal number, since it uses more digits than its factorization.

121132120113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498486106 (or 498486094 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121132120113 its reverse (311021231121), we get a palindrome (432153351234).

The spelling of 121132120113 in words is "one hundred twenty-one billion, one hundred thirty-two million, one hundred twenty thousand, one hundred thirteen".