1311140333221 has 8 divisors (see below), whose sum is σ = 1381021815200. Its totient is φ = 1241346260880.

The previous prime is 1311140333207. The next prime is 1311140333257. The reversal of 1311140333221 is 1223330411131.

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 1311140333221 - 2¹⁷ = 1311140202149 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 (1311140313221) 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, 21821610 + ... + 21881611.

It is an arithmetic number, because the mean of its divisors is an integer number (172627726900).

Almost surely, 2^{1311140333221} is an apocalyptic number.

It is an amenable number.

1311140333221 is a deficient number, since it is larger than the sum of its proper divisors (69881481979).

1311140333221 is a wasteful number, since it uses less digits than its factorization.

1311140333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43704819.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 1311140333221 its reverse (1223330411131), we get a palindrome (2534470744352).

The spelling of 1311140333221 in words is "one trillion, three hundred eleven billion, one hundred forty million, three hundred thirty-three thousand, two hundred twenty-one".