1311034400201 has 4 divisors (see below), whose sum is σ = 1335770898372. Its totient is φ = 1286297902032.

The previous prime is 1311034400197. The next prime is 1311034400233. The reversal of 1311034400201 is 1020044301131.

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 355098001801 + 955936398400 = 595901^2 + 977720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311034400201 - 2² = 1311034400197 is a prime.

It is a super-2 number, since 2×1311034400201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311034400261) 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, 12368249006 + ... + 12368249111.

It is an arithmetic number, because the mean of its divisors is an integer number (333942724593).

Almost surely, 2^{1311034400201} is an apocalyptic number.

It is an amenable number.

1311034400201 is a deficient number, since it is larger than the sum of its proper divisors (24736498171).

1311034400201 is an equidigital number, since it uses as much as digits as its factorization.

1311034400201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24736498170.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1311034400201 its reverse (1020044301131), we get a palindrome (2331078701332).

The spelling of 1311034400201 in words is "one trillion, three hundred eleven billion, thirty-four million, four hundred thousand, two hundred one".