1311033203101 has 8 divisors (see below), whose sum is σ = 1312510355064. Its totient is φ = 1309556674560.

The previous prime is 1311033203071. The next prime is 1311033203141. The reversal of 1311033203101 is 1013023301131.

It can be written as a sum of positive squares in 4 ways, for example, as 405481127076 + 905552076025 = 636774^2 + 951605^2 .

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 1311033203101 - 2¹⁷ = 1311033072029 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 (1311033203141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4118221 + ... + 4425133.

It is an arithmetic number, because the mean of its divisors is an integer number (164063794383).

Almost surely, 2^{1311033203101} is an apocalyptic number.

It is an amenable number.

1311033203101 is a deficient number, since it is larger than the sum of its proper divisors (1477151963).

1311033203101 is a wasteful number, since it uses less digits than its factorization.

1311033203101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311711.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1311033203101 its reverse (1013023301131), we get a palindrome (2324056504232).

The spelling of 1311033203101 in words is "one trillion, three hundred eleven billion, thirty-three million, two hundred three thousand, one hundred one".