113253505571 has 4 divisors (see below), whose sum is σ = 113505741000. Its totient is φ = 113001270144.

The previous prime is 113253505493. The next prime is 113253505619. The reversal of 113253505571 is 175505352311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 175505352311 = 83 ⋅2114522317.

It is a cyclic number.

It is not a de Polignac number, because 113253505571 - 2¹⁰ = 113253504547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113253505471) 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, 126117041 + ... + 126117938.

It is an arithmetic number, because the mean of its divisors is an integer number (28376435250).

Almost surely, 2^113253505571 is an apocalyptic number.

113253505571 is a deficient number, since it is larger than the sum of its proper divisors (252235429).

113253505571 is an equidigital number, since it uses as much as digits as its factorization.

113253505571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252235428.

The product of its (nonzero) digits is 78750, while the sum is 38.

Adding to 113253505571 its reverse (175505352311), we get a palindrome (288758857882).

The spelling of 113253505571 in words is "one hundred thirteen billion, two hundred fifty-three million, five hundred five thousand, five hundred seventy-one".