1201323133121 has 8 divisors (see below), whose sum is σ = 1206434437824. Its totient is φ = 1196215946640.

The previous prime is 1201323133111. The next prime is 1201323133151. The reversal of 1201323133121 is 1213313231021.

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 1201323133121 - 2²² = 1201318938817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201323133111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444191 + ... + 1612436.

It is an arithmetic number, because the mean of its divisors is an integer number (150804304728).

Almost surely, 2^{1201323133121} is an apocalyptic number.

It is an amenable number.

1201323133121 is a deficient number, since it is larger than the sum of its proper divisors (5111304703).

1201323133121 is a wasteful number, since it uses less digits than its factorization.

1201323133121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059111.

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

Adding to 1201323133121 its reverse (1213313231021), we get a palindrome (2414636364142).

The spelling of 1201323133121 in words is "one trillion, two hundred one billion, three hundred twenty-three million, one hundred thirty-three thousand, one hundred twenty-one".