121111302133 has 4 divisors (see below), whose sum is σ = 121112162028. Its totient is φ = 121110442240.

The previous prime is 121111302089. The next prime is 121111302139. The reversal of 121111302133 is 331203111121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 56837897649 + 64273404484 = 238407^2 + 253522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121111302133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121111302133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111302139) 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, 163738 + ... + 518683.

It is an arithmetic number, because the mean of its divisors is an integer number (30278040507).

Almost surely, 2^121111302133 is an apocalyptic number.

It is an amenable number.

121111302133 is a deficient number, since it is larger than the sum of its proper divisors (859895).

121111302133 is an equidigital number, since it uses as much as digits as its factorization.

121111302133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859894.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121111302133 its reverse (331203111121), we get a palindrome (452314413254).

The spelling of 121111302133 in words is "one hundred twenty-one billion, one hundred eleven million, three hundred two thousand, one hundred thirty-three".