11531366841 has 16 divisors (see below), whose sum is σ = 15427584000. Its totient is φ = 7661391888.

The previous prime is 11531366839. The next prime is 11531366843. The reversal of 11531366841 is 14866313511.

It is an interprime number because it is at equal distance from previous prime (11531366839) and next prime (11531366843).

It is not a de Polignac number, because 11531366841 - 2¹ = 11531366839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11531366841.

It is not an unprimeable number, because it can be changed into a prime (11531366843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2904840 + ... + 2908806.

It is an arithmetic number, because the mean of its divisors is an integer number (964224000).

Almost surely, 2^11531366841 is an apocalyptic number.

It is an amenable number.

11531366841 is a deficient number, since it is larger than the sum of its proper divisors (3896217159).

11531366841 is a wasteful number, since it uses less digits than its factorization.

11531366841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028.

The product of its digits is 51840, while the sum is 39.

The spelling of 11531366841 in words is "eleven billion, five hundred thirty-one million, three hundred sixty-six thousand, eight hundred forty-one".