1311114433643 has 8 divisors (see below), whose sum is σ = 1500015666912. Its totient is φ = 1122612993216.

The previous prime is 1311114433639. The next prime is 1311114433729. The reversal of 1311114433643 is 3463344111131.

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 1311114433643 - 2² = 1311114433639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311114433943) 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, 99941180 + ... + 99954297.

It is an arithmetic number, because the mean of its divisors is an integer number (187501958364).

Almost surely, 2^{1311114433643} is an apocalyptic number.

1311114433643 is a deficient number, since it is larger than the sum of its proper divisors (188901233269).

1311114433643 is an equidigital number, since it uses as much as digits as its factorization.

1311114433643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199896421.

The product of its digits is 31104, while the sum is 35.

Adding to 1311114433643 its reverse (3463344111131), we get a palindrome (4774458544774).

The spelling of 1311114433643 in words is "one trillion, three hundred eleven billion, one hundred fourteen million, four hundred thirty-three thousand, six hundred forty-three".