11720366131 has 2 divisors, whose sum is σ = 11720366132. Its totient is φ = 11720366130.

The previous prime is 11720366093. The next prime is 11720366183. The reversal of 11720366131 is 13166302711.

11720366131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (13166302711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11720366131 - 2²³ = 11711977523 is a prime.

It is a super-2 number, since 2×11720366131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11720366093 and 11720366102.

It is not a weakly prime, because it can be changed into another prime (11720361131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5860183065 + 5860183066.

It is an arithmetic number, because the mean of its divisors is an integer number (5860183066).

Almost surely, 2^11720366131 is an apocalyptic number.

11720366131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11720366131 is an equidigital number, since it uses as much as digits as its factorization.

11720366131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

Adding to 11720366131 its reverse (13166302711), we get a palindrome (24886668842).

The spelling of 11720366131 in words is "eleven billion, seven hundred twenty million, three hundred sixty-six thousand, one hundred thirty-one".