11541246109 has 2 divisors, whose sum is σ = 11541246110. Its totient is φ = 11541246108.

The previous prime is 11541246071. The next prime is 11541246137. The reversal of 11541246109 is 90164214511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11541204900 + 41209 = 107430^2 + 203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11541246109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11541246149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5770623054 + 5770623055.

It is an arithmetic number, because the mean of its divisors is an integer number (5770623055).

Almost surely, 2^11541246109 is an apocalyptic number.

It is an amenable number.

11541246109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11541246109 is an equidigital number, since it uses as much as digits as its factorization.

11541246109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 11541246109 in words is "eleven billion, five hundred forty-one million, two hundred forty-six thousand, one hundred nine".