121303320131313 has 40 divisors (see below), whose sum is σ = 191908770818688. Its totient is φ = 76094675116416.

The previous prime is 121303320131303. The next prime is 121303320131321. The reversal of 121303320131313 is 313131023303121.

121303320131313 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 0 + 332 + 0 + 1 + 313 + 13 = 666.

It is not a de Polignac number, because 121303320131313 - 2¹⁶ = 121303320065777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (121303320131303) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3867981 + ... + 16048922.

Almost surely, 2^{121303320131313} is an apocalyptic number.

It is an amenable number.

121303320131313 is a deficient number, since it is larger than the sum of its proper divisors (70605450687375).

121303320131313 is a wasteful number, since it uses less digits than its factorization.

121303320131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19921355 (or 19921346 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 121303320131313 its reverse (313131023303121), we get a palindrome (434434343434434).

The spelling of 121303320131313 in words is "one hundred twenty-one trillion, three hundred three billion, three hundred twenty million, one hundred thirty-one thousand, three hundred thirteen".