113021244243 has 24 divisors (see below), whose sum is σ = 176660160768. Its totient is φ = 72071514504.

The previous prime is 113021244227. The next prime is 113021244257. The reversal of 113021244243 is 342442120311.

113021244243 is a `hidden beast` number, since 1 + 1 + 3 + 0 + 212 + 442 + 4 + 3 = 666.

It is not a de Polignac number, because 113021244243 - 2⁴ = 113021244227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (113021244283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10105455 + ... + 10116632.

It is an arithmetic number, because the mean of its divisors is an integer number (7360840032).

Almost surely, 2^113021244243 is an apocalyptic number.

113021244243 is a deficient number, since it is larger than the sum of its proper divisors (63638916525).

113021244243 is an equidigital number, since it uses as much as digits as its factorization.

113021244243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20222125 (or 20222113 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 113021244243 its reverse (342442120311), we get a palindrome (455463364554).

The spelling of 113021244243 in words is "one hundred thirteen billion, twenty-one million, two hundred forty-four thousand, two hundred forty-three".