121212303113 has 8 divisors (see below), whose sum is σ = 133540828416. Its totient is φ = 109101982000.

The previous prime is 121212303103. The next prime is 121212303193. The reversal of 121212303113 is 311303212121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121212303113 - 2⁶ = 121212303049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121212303103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54549881 + ... + 54552102.

It is an arithmetic number, because the mean of its divisors is an integer number (16692603552).

Almost surely, 2^121212303113 is an apocalyptic number.

It is an amenable number.

121212303113 is a deficient number, since it is larger than the sum of its proper divisors (12328525303).

121212303113 is a wasteful number, since it uses less digits than its factorization.

121212303113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109102095.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121212303113 its reverse (311303212121), we get a palindrome (432515515234).

The spelling of 121212303113 in words is "one hundred twenty-one billion, two hundred twelve million, three hundred three thousand, one hundred thirteen".