11551544343101 has 4 divisors (see below), whose sum is σ = 13201764963552. Its totient is φ = 9901323722652.

The previous prime is 11551544343071. The next prime is 11551544343127. The reversal of 11551544343101 is 10134344515511.

11551544343101 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 11551544343101 - 2¹⁰ = 11551544342077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551544343301) 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, 825110310215 + ... + 825110310228.

It is an arithmetic number, because the mean of its divisors is an integer number (3300441240888).

Almost surely, 2^{11551544343101} is an apocalyptic number.

It is an amenable number.

11551544343101 is a deficient number, since it is larger than the sum of its proper divisors (1650220620451).

11551544343101 is an equidigital number, since it uses as much as digits as its factorization.

11551544343101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650220620450.

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 11551544343101 its reverse (10134344515511), we get a palindrome (21685888858612).

The spelling of 11551544343101 in words is "eleven trillion, five hundred fifty-one billion, five hundred forty-four million, three hundred forty-three thousand, one hundred one".