113420444243 has 4 divisors (see below), whose sum is σ = 113442684288. Its totient is φ = 113398204200.

The previous prime is 113420444239. The next prime is 113420444257. The reversal of 113420444243 is 342444024311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342444024311 = 5437 ⋅62984003.

It is a cyclic number.

It is not a de Polignac number, because 113420444243 - 2² = 113420444239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113420444213) 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, 11112371 + ... + 11122572.

It is an arithmetic number, because the mean of its divisors is an integer number (28360671072).

Almost surely, 2^113420444243 is an apocalyptic number.

113420444243 is a deficient number, since it is larger than the sum of its proper divisors (22240045).

113420444243 is an equidigital number, since it uses as much as digits as its factorization.

113420444243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22240044.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 113420444243 its reverse (342444024311), we get a palindrome (455864468554).

The spelling of 113420444243 in words is "one hundred thirteen billion, four hundred twenty million, four hundred forty-four thousand, two hundred forty-three".