1313203213121 has 8 divisors (see below), whose sum is σ = 1350874044480. Its totient is φ = 1275647058288.

The previous prime is 1313203213117. The next prime is 1313203213123. The reversal of 1313203213121 is 1213123023131.

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 1313203213121 - 2² = 1313203213117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313203213123) 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, 28645901 + ... + 28691706.

It is an arithmetic number, because the mean of its divisors is an integer number (168859255560).

Almost surely, 2^{1313203213121} is an apocalyptic number.

It is an amenable number.

1313203213121 is a deficient number, since it is larger than the sum of its proper divisors (37670831359).

1313203213121 is an equidigital number, since it uses as much as digits as its factorization.

1313203213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57338263.

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

Adding to 1313203213121 its reverse (1213123023131), we get a palindrome (2526326236252).

The spelling of 1313203213121 in words is "one trillion, three hundred thirteen billion, two hundred three million, two hundred thirteen thousand, one hundred twenty-one".