11500543241 has 12 divisors (see below), whose sum is σ = 12894310800. Its totient is φ = 10172457360.

The previous prime is 11500543211. The next prime is 11500543309. The reversal of 11500543241 is 14234500511.

It is not a de Polignac number, because 11500543241 - 2¹⁰ = 11500542217 is a prime.

It is a super-2 number, since 2×11500543241² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11500543241.

It is not an unprimeable number, because it can be changed into a prime (11500543211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366791 + ... + 396908.

It is an arithmetic number, because the mean of its divisors is an integer number (1074525900).

Almost surely, 2^11500543241 is an apocalyptic number.

11500543241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11500543241 is a deficient number, since it is larger than the sum of its proper divisors (1393767559).

11500543241 is an equidigital number, since it uses as much as digits as its factorization.

11500543241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763784 (or 763747 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 11500543241 in words is "eleven billion, five hundred million, five hundred forty-three thousand, two hundred forty-one".