11543132034451 has 4 divisors (see below), whose sum is σ = 11715417587272. Its totient is φ = 11370846481632.

The previous prime is 11543132034443. The next prime is 11543132034541. The reversal of 11543132034451 is 15443023134511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11543132034451 - 2³ = 11543132034443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11543132034451.

It is not an unprimeable number, because it can be changed into a prime (11543132334451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86142776310 + ... + 86142776443.

It is an arithmetic number, because the mean of its divisors is an integer number (2928854396818).

Almost surely, 2^{11543132034451} is an apocalyptic number.

11543132034451 is a deficient number, since it is larger than the sum of its proper divisors (172285552821).

11543132034451 is an equidigital number, since it uses as much as digits as its factorization.

11543132034451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172285552820.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 11543132034451 its reverse (15443023134511), we get a palindrome (26986155168962).

The spelling of 11543132034451 in words is "eleven trillion, five hundred forty-three billion, one hundred thirty-two million, thirty-four thousand, four hundred fifty-one".