121213725304333 has 4 divisors (see below), whose sum is σ = 128343944439900. Its totient is φ = 114083506168768.

The previous prime is 121213725304277. The next prime is 121213725304363. The reversal of 121213725304333 is 333403527312121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 101437186989609 + 19776538314724 = 10071603^2 + 4447082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121213725304333 is a prime.

It is a super-3 number, since 3×121213725304333³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213725304363) 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, 3565109567758 + ... + 3565109567791.

It is an arithmetic number, because the mean of its divisors is an integer number (32085986109975).

Almost surely, 2^{121213725304333} is an apocalyptic number.

It is an amenable number.

121213725304333 is a deficient number, since it is larger than the sum of its proper divisors (7130219135567).

121213725304333 is an equidigital number, since it uses as much as digits as its factorization.

121213725304333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130219135566.

The product of its (nonzero) digits is 272160, while the sum is 40.

The spelling of 121213725304333 in words is "one hundred twenty-one trillion, two hundred thirteen billion, seven hundred twenty-five million, three hundred four thousand, three hundred thirty-three".