12001201121311 has 8 divisors (see below), whose sum is σ = 12316388528304. Its totient is φ = 11687083961280.

The previous prime is 12001201121281. The next prime is 12001201121317. The reversal of 12001201121311 is 11312110210021.

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 12001201121311 - 2⁵ = 12001201121279 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 (12001201121317) 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, 267539020 + ... + 267583873.

It is an arithmetic number, because the mean of its divisors is an integer number (1539548566038).

Almost surely, 2^{12001201121311} is an apocalyptic number.

12001201121311 is a deficient number, since it is larger than the sum of its proper divisors (315187406993).

12001201121311 is an equidigital number, since it uses as much as digits as its factorization.

12001201121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535123481.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12001201121311 its reverse (11312110210021), we get a palindrome (23313311331332).

The spelling of 12001201121311 in words is "twelve trillion, one billion, two hundred one million, one hundred twenty-one thousand, three hundred eleven".