121013100313121 has 2 divisors, whose sum is σ = 121013100313122. Its totient is φ = 121013100313120.

The previous prime is 121013100313069. The next prime is 121013100313129. The reversal of 121013100313121 is 121313001310121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112881700176400 + 8131400136721 = 10624580^2 + 2851561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121013100313121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121013100313093 and 121013100313102.

It is not a weakly prime, because it can be changed into another prime (121013100313129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506550156560 + 60506550156561.

It is an arithmetic number, because the mean of its divisors is an integer number (60506550156561).

Almost surely, 2^{121013100313121} is an apocalyptic number.

It is an amenable number.

121013100313121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121013100313121 is an equidigital number, since it uses as much as digits as its factorization.

121013100313121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 121013100313121 its reverse (121313001310121), we get a palindrome (242326101623242).

The spelling of 121013100313121 in words is "one hundred twenty-one trillion, thirteen billion, one hundred million, three hundred thirteen thousand, one hundred twenty-one".