11500010500001 has 4 divisors (see below), whose sum is σ = 11500041028272. Its totient is φ = 11499979971732.

The previous prime is 11500010499997. The next prime is 11500010500007. The reversal of 11500010500001 is 10000501000511.

11500010500001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11500010500001 - 2² = 11500010499997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11500010500007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14691935 + ... + 15454868.

It is an arithmetic number, because the mean of its divisors is an integer number (2875010257068).

Almost surely, 2^{11500010500001} is an apocalyptic number.

It is an amenable number.

11500010500001 is a deficient number, since it is larger than the sum of its proper divisors (30528271).

11500010500001 is an equidigital number, since it uses as much as digits as its factorization.

11500010500001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30528270.

The product of its (nonzero) digits is 25, while the sum is 14.

Adding to 11500010500001 its reverse (10000501000511), we get a palindrome (21500511500512).

The spelling of 11500010500001 in words is "eleven trillion, five hundred billion, ten million, five hundred thousand, one".