11544420413 has 2 divisors, whose sum is σ = 11544420414. Its totient is φ = 11544420412.

The previous prime is 11544420359. The next prime is 11544420479. The reversal of 11544420413 is 31402444511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5816655289 + 5727765124 = 76267^2 + 75682^2 .

It is a cyclic number.

It is not a de Polignac number, because 11544420413 - 2²⁰ = 11543371837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11544420913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772210206 + 5772210207.

It is an arithmetic number, because the mean of its divisors is an integer number (5772210207).

Almost surely, 2^11544420413 is an apocalyptic number.

It is an amenable number.

11544420413 is a deficient number, since it is larger than the sum of its proper divisors (1).

11544420413 is an equidigital number, since it uses as much as digits as its factorization.

11544420413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 11544420413 its reverse (31402444511), we get a palindrome (42946864924).

The spelling of 11544420413 in words is "eleven billion, five hundred forty-four million, four hundred twenty thousand, four hundred thirteen".