12121110311311 has 8 divisors (see below), whose sum is σ = 12122873432064. Its totient is φ = 12119347341600.

The previous prime is 12121110311293. The next prime is 12121110311389. The reversal of 12121110311311 is 11311301112121.

12121110311311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12121110311311 - 2²³ = 12121101922703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121110311911) 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, 343094130 + ... + 343129456.

It is an arithmetic number, because the mean of its divisors is an integer number (1515359179008).

Almost surely, 2^{12121110311311} is an apocalyptic number.

12121110311311 is a deficient number, since it is larger than the sum of its proper divisors (1763120753).

12121110311311 is a wasteful number, since it uses less digits than its factorization.

12121110311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75521.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 12121110311311 its reverse (11311301112121), we get a palindrome (23432411423432).

The spelling of 12121110311311 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, three hundred eleven thousand, three hundred eleven".