121321203333133 has 8 divisors (see below), whose sum is σ = 122307176130552. Its totient is φ = 120336685848576.

The previous prime is 121321203333107. The next prime is 121321203333137. The reversal of 121321203333133 is 331333302123121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 55583720644 + 121265619612489 = 235762^2 + 11012067^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121321203333133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121321203333095 and 121321203333104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321203333137) 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, 363660810 + ... + 363994267.

It is an arithmetic number, because the mean of its divisors is an integer number (15288397016319).

Almost surely, 2^{121321203333133} is an apocalyptic number.

It is an amenable number.

121321203333133 is a deficient number, since it is larger than the sum of its proper divisors (985972797419).

121321203333133 is a wasteful number, since it uses less digits than its factorization.

121321203333133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727656431.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 121321203333133 its reverse (331333302123121), we get a palindrome (452654505456254).

The spelling of 121321203333133 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, two hundred three million, three hundred thirty-three thousand, one hundred thirty-three".