1223121304133 has 8 divisors (see below), whose sum is σ = 1223596078368. Its totient is φ = 1222646627664.

The previous prime is 1223121304129. The next prime is 1223121304183. The reversal of 1223121304133 is 3314031213221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1223121304133 - 2² = 1223121304129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223121304103) 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 7 ways as a sum of consecutive naturals, for example, 33107810 + ... + 33144732.

It is an arithmetic number, because the mean of its divisors is an integer number (152949509796).

Almost surely, 2^{1223121304133} is an apocalyptic number.

It is an amenable number.

1223121304133 is a deficient number, since it is larger than the sum of its proper divisors (474774235).

1223121304133 is an equidigital number, since it uses as much as digits as its factorization.

1223121304133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48883.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1223121304133 its reverse (3314031213221), we get a palindrome (4537152517354).

The spelling of 1223121304133 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-one million, three hundred four thousand, one hundred thirty-three".