11533453471 has 4 divisors (see below), whose sum is σ = 11534128600. Its totient is φ = 11532778344.

The previous prime is 11533453447. The next prime is 11533453501. The reversal of 11533453471 is 17435433511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17435433511 = 1559 ⋅11183729.

It is a cyclic number.

It is not a de Polignac number, because 11533453471 - 2²⁹ = 10996582559 is a prime.

It is a super-3 number, since 3×11533453471³ (a number of 31 digits) contains 333 as substring.

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 11533453471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11533453411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311256 + ... + 346333.

It is an arithmetic number, because the mean of its divisors is an integer number (2883532150).

Almost surely, 2^11533453471 is an apocalyptic number.

11533453471 is a deficient number, since it is larger than the sum of its proper divisors (675129).

11533453471 is an equidigital number, since it uses as much as digits as its factorization.

11533453471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675128.

The product of its digits is 75600, while the sum is 37.

Adding to 11533453471 its reverse (17435433511), we get a palindrome (28968886982).

The spelling of 11533453471 in words is "eleven billion, five hundred thirty-three million, four hundred fifty-three thousand, four hundred seventy-one".