11131342631 has 2 divisors, whose sum is σ = 11131342632. Its totient is φ = 11131342630.

The previous prime is 11131342529. The next prime is 11131342643. The reversal of 11131342631 is 13624313111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11131342631 - 2¹⁰ = 11131341607 is a prime.

It is a super-2 number, since 2×11131342631² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11131342631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11131342031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565671315 + 5565671316.

It is an arithmetic number, because the mean of its divisors is an integer number (5565671316).

Almost surely, 2^11131342631 is an apocalyptic number.

11131342631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131342631 is an equidigital number, since it uses as much as digits as its factorization.

11131342631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

Adding to 11131342631 its reverse (13624313111), we get a palindrome (24755655742).

The spelling of 11131342631 in words is "eleven billion, one hundred thirty-one million, three hundred forty-two thousand, six hundred thirty-one".