11368280531 has 4 divisors (see below), whose sum is σ = 11632659192. Its totient is φ = 11103901872.

The previous prime is 11368280519. The next prime is 11368280557. The reversal of 11368280531 is 13508286311.

11368280531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13508286311 = 13 ⋅1039098947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11368280531 is a prime.

It is a super-2 number, since 2×11368280531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11368280501) 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 in 3 ways as a sum of consecutive naturals, for example, 132189266 + ... + 132189351.

It is an arithmetic number, because the mean of its divisors is an integer number (2908164798).

Almost surely, 2^11368280531 is an apocalyptic number.

11368280531 is a deficient number, since it is larger than the sum of its proper divisors (264378661).

11368280531 is an equidigital number, since it uses as much as digits as its factorization.

11368280531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264378660.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 11368280531 in words is "eleven billion, three hundred sixty-eight million, two hundred eighty thousand, five hundred thirty-one".