113423420423 has 4 divisors (see below), whose sum is σ = 113487250800. Its totient is φ = 113359590048.

The previous prime is 113423420377. The next prime is 113423420477. The reversal of 113423420423 is 324024324311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324024324311 = 241 ⋅1344499271.

It is a cyclic number.

It is not a de Polignac number, because 113423420423 - 2¹⁶ = 113423354887 is a prime.

It is a super-2 number, since 2×113423420423² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113423420723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31912523 + ... + 31916076.

It is an arithmetic number, because the mean of its divisors is an integer number (28371812700).

Almost surely, 2^113423420423 is an apocalyptic number.

113423420423 is a deficient number, since it is larger than the sum of its proper divisors (63830377).

113423420423 is an equidigital number, since it uses as much as digits as its factorization.

113423420423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63830376.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 113423420423 its reverse (324024324311), we get a palindrome (437447744734).

The spelling of 113423420423 in words is "one hundred thirteen billion, four hundred twenty-three million, four hundred twenty thousand, four hundred twenty-three".