1311113133401 has 2 divisors, whose sum is σ = 1311113133402. Its totient is φ = 1311113133400.

The previous prime is 1311113133373. The next prime is 1311113133437. The reversal of 1311113133401 is 1043313111131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1258213133401 + 52900000000 = 1121701^2 + 230000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311113133401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311113133101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655556566700 + 655556566701.

It is an arithmetic number, because the mean of its divisors is an integer number (655556566701).

Almost surely, 2^{1311113133401} is an apocalyptic number.

It is an amenable number.

1311113133401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311113133401 is an equidigital number, since it uses as much as digits as its factorization.

1311113133401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 1311113133401 its reverse (1043313111131), we get a palindrome (2354426244532).

The spelling of 1311113133401 in words is "one trillion, three hundred eleven billion, one hundred thirteen million, one hundred thirty-three thousand, four hundred one".