1311032204401 has 4 divisors (see below), whose sum is σ = 1323060022900. Its totient is φ = 1299004385904.

The previous prime is 1311032204353. The next prime is 1311032204441. The reversal of 1311032204401 is 1044022301131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1188097820001 + 122934384400 = 1089999^2 + 350620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311032204401 - 2²¹ = 1311030107249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311032204441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6013909086 + ... + 6013909303.

It is an arithmetic number, because the mean of its divisors is an integer number (330765005725).

Almost surely, 2^{1311032204401} is an apocalyptic number.

It is an amenable number.

1311032204401 is a deficient number, since it is larger than the sum of its proper divisors (12027818499).

1311032204401 is a wasteful number, since it uses less digits than its factorization.

1311032204401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12027818498.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1311032204401 its reverse (1044022301131), we get a palindrome (2355054505532).

The spelling of 1311032204401 in words is "one trillion, three hundred eleven billion, thirty-two million, two hundred four thousand, four hundred one".