11523311644424 has 32 divisors (see below), whose sum is σ = 21679567691040. Its totient is φ = 5742123129600.

The previous prime is 11523311644423. The next prime is 11523311644441. The reversal of 11523311644424 is 42444611332511.

It is a super-2 number, since 2×11523311644424² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11523311644423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1276919 + ... + 4967609.

It is an arithmetic number, because the mean of its divisors is an integer number (677486490345).

Almost surely, 2^{11523311644424} is an apocalyptic number.

It is an amenable number.

11523311644424 is a deficient number, since it is larger than the sum of its proper divisors (10156256046616).

11523311644424 is a wasteful number, since it uses less digits than its factorization.

11523311644424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692021 (or 3692017 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

Adding to 11523311644424 its reverse (42444611332511), we get a palindrome (53967922976935).

The spelling of 11523311644424 in words is "eleven trillion, five hundred twenty-three billion, three hundred eleven million, six hundred forty-four thousand, four hundred twenty-four".