11504442541 has 2 divisors, whose sum is σ = 11504442542. Its totient is φ = 11504442540.

The previous prime is 11504442539. The next prime is 11504442553. The reversal of 11504442541 is 14524440511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11262515625 + 241926916 = 106125^2 + 15554^2 .

It is a cyclic number.

It is not a de Polignac number, because 11504442541 - 2¹ = 11504442539 is a prime.

Together with 11504442539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11504442571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5752221270 + 5752221271.

It is an arithmetic number, because the mean of its divisors is an integer number (5752221271).

Almost surely, 2^11504442541 is an apocalyptic number.

It is an amenable number.

11504442541 is a deficient number, since it is larger than the sum of its proper divisors (1).

11504442541 is an equidigital number, since it uses as much as digits as its factorization.

11504442541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12800, while the sum is 31.

The spelling of 11504442541 in words is "eleven billion, five hundred four million, four hundred forty-two thousand, five hundred forty-one".