121213321133 has 4 divisors (see below), whose sum is σ = 121245743520. Its totient is φ = 121180898748.

The previous prime is 121213321127. The next prime is 121213321169. The reversal of 121213321133 is 331123312121.

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.

It is a cyclic number.

It is not a de Polignac number, because 121213321133 - 2³² = 116918353837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121213321099 and 121213321108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213821133) 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, 16205585 + ... + 16213062.

It is an arithmetic number, because the mean of its divisors is an integer number (30311435880).

Almost surely, 2^121213321133 is an apocalyptic number.

It is an amenable number.

121213321133 is a deficient number, since it is larger than the sum of its proper divisors (32422387).

121213321133 is an equidigital number, since it uses as much as digits as its factorization.

121213321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32422386.

The product of its digits is 648, while the sum is 23.

Adding to 121213321133 its reverse (331123312121), we get a palindrome (452336633254).

The spelling of 121213321133 in words is "one hundred twenty-one billion, two hundred thirteen million, three hundred twenty-one thousand, one hundred thirty-three".