113021023243 has 4 divisors (see below), whose sum is σ = 115777633608. Its totient is φ = 110264412880.

The previous prime is 113021023151. The next prime is 113021023267. The reversal of 113021023243 is 342320120311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113021023243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113021024243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378305121 + ... + 1378305202.

It is an arithmetic number, because the mean of its divisors is an integer number (28944408402).

Almost surely, 2^113021023243 is an apocalyptic number.

113021023243 is a deficient number, since it is larger than the sum of its proper divisors (2756610365).

113021023243 is an equidigital number, since it uses as much as digits as its factorization.

113021023243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756610364.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 113021023243 its reverse (342320120311), we get a palindrome (455341143554).

The spelling of 113021023243 in words is "one hundred thirteen billion, twenty-one million, twenty-three thousand, two hundred forty-three".