121313113331 has 2 divisors, whose sum is σ = 121313113332. Its totient is φ = 121313113330.

The previous prime is 121313113303. The next prime is 121313113379. The reversal of 121313113331 is 133311313121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121313113331 - 2³⁰ = 120239371507 is a prime.

It is a super-2 number, since 2×121313113331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121313113297 and 121313113306.

It is not a weakly prime, because it can be changed into another prime (121313113231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60656556665 + 60656556666.

It is an arithmetic number, because the mean of its divisors is an integer number (60656556666).

Almost surely, 2^121313113331 is an apocalyptic number.

121313113331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121313113331 is an equidigital number, since it uses as much as digits as its factorization.

121313113331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 23.

Adding to 121313113331 its reverse (133311313121), we get a palindrome (254624426452).

The spelling of 121313113331 in words is "one hundred twenty-one billion, three hundred thirteen million, one hundred thirteen thousand, three hundred thirty-one".