121013111100311 has 4 divisors (see below), whose sum is σ = 126274550713392. Its totient is φ = 115751671487232.

The previous prime is 121013111100293. The next prime is 121013111100331. The reversal of 121013111100311 is 113001111310121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121013111100311 - 2²² = 121013106906007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121013111100311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013111100331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2630719806506 + ... + 2630719806551.

It is an arithmetic number, because the mean of its divisors is an integer number (31568637678348).

Almost surely, 2^{121013111100311} is an apocalyptic number.

121013111100311 is a deficient number, since it is larger than the sum of its proper divisors (5261439613081).

121013111100311 is an equidigital number, since it uses as much as digits as its factorization.

121013111100311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261439613080.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 121013111100311 its reverse (113001111310121), we get a palindrome (234014222410432).

The spelling of 121013111100311 in words is "one hundred twenty-one trillion, thirteen billion, one hundred eleven million, one hundred thousand, three hundred eleven".