11318101813 has 2 divisors, whose sum is σ = 11318101814. Its totient is φ = 11318101812.

The previous prime is 11318101799. The next prime is 11318101877. The reversal of 11318101813 is 31810181311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10850763889 + 467337924 = 104167^2 + 21618^2 .

It is a cyclic number.

It is not a de Polignac number, because 11318101813 - 2²⁵ = 11284547381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11318101313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5659050906 + 5659050907.

It is an arithmetic number, because the mean of its divisors is an integer number (5659050907).

Almost surely, 2^11318101813 is an apocalyptic number.

It is an amenable number.

11318101813 is a deficient number, since it is larger than the sum of its proper divisors (1).

11318101813 is an equidigital number, since it uses as much as digits as its factorization.

11318101813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 28.

It can be divided in two parts, 11 and 318101813, that multiplied together give a palindrome (3499119943).

The spelling of 11318101813 in words is "eleven billion, three hundred eighteen million, one hundred one thousand, eight hundred thirteen".