Adding to 1311033401 its reverse (1043301131), we get a palindrome (2354334532).
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1311033401.
Almost surely, 21311033401 is an apocalyptic number.
It is an amenable number.
1311033401 is an equidigital number, since it uses as much as digits as its factorization.
1311033401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73302.
The square root of 1311033401 is about 36208.1952187623. The cubic root of 1311033401 is about 1094.4718235593.
The spelling of 1311033401 in words is "one billion, three hundred eleven million, thirty-three thousand, four hundred one".