121303100313 has 32 divisors (see below), whose sum is σ = 190472094720. Its totient is φ = 76034661120.

The previous prime is 121303100299. The next prime is 121303100329. The reversal of 121303100313 is 313001303121.

It is a happy number.

121303100313 is a `hidden beast` number, since 12 + 1 + 30 + 310 + 0 + 313 = 666.

It is not a de Polignac number, because 121303100313 - 2⁶ = 121303100249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121303100393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321531 + ... + 588207.

It is an arithmetic number, because the mean of its divisors is an integer number (5952252960).

Almost surely, 2^121303100313 is an apocalyptic number.

It is an amenable number.

121303100313 is a deficient number, since it is larger than the sum of its proper divisors (69168994407).

121303100313 is a wasteful number, since it uses less digits than its factorization.

121303100313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267694 (or 267688 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 121303100313 its reverse (313001303121), we get a palindrome (434304403434).

The spelling of 121303100313 in words is "one hundred twenty-one billion, three hundred three million, one hundred thousand, three hundred thirteen".