11544042331 has 2 divisors, whose sum is σ = 11544042332. Its totient is φ = 11544042330.

The previous prime is 11544042319. The next prime is 11544042347. The reversal of 11544042331 is 13324044511.

It is a weak prime.

It is an emirp because it is prime and its reverse (13324044511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11544042331 - 2⁵ = 11544042299 is a prime.

It is a super-2 number, since 2×11544042331² (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 11544042331.

It is not a weakly prime, because it can be changed into another prime (11544042031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772021165 + 5772021166.

It is an arithmetic number, because the mean of its divisors is an integer number (5772021166).

Almost surely, 2^11544042331 is an apocalyptic number.

11544042331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11544042331 is an equidigital number, since it uses as much as digits as its factorization.

11544042331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 11544042331 its reverse (13324044511), we get a palindrome (24868086842).

The spelling of 11544042331 in words is "eleven billion, five hundred forty-four million, forty-two thousand, three hundred thirty-one".