121303202113 has 4 divisors (see below), whose sum is σ = 121495442368. Its totient is φ = 121110961860.

The previous prime is 121303202107. The next prime is 121303202123. The reversal of 121303202113 is 311202303121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311202303121 = 181 ⋅1719349741.

It is a cyclic number.

It is not a de Polignac number, because 121303202113 - 2⁵ = 121303202081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121303202123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96119181 + ... + 96120442.

It is an arithmetic number, because the mean of its divisors is an integer number (30373860592).

Almost surely, 2^121303202113 is an apocalyptic number.

It is an amenable number.

121303202113 is a deficient number, since it is larger than the sum of its proper divisors (192240255).

121303202113 is an equidigital number, since it uses as much as digits as its factorization.

121303202113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192240254.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121303202113 its reverse (311202303121), we get a palindrome (432505505234).

The spelling of 121303202113 in words is "one hundred twenty-one billion, three hundred three million, two hundred two thousand, one hundred thirteen".