113240623 has 4 divisors (see below), whose sum is σ = 113532120. Its totient is φ = 112949128.

The previous prime is 113240597. The next prime is 113240639. The reversal of 113240623 is 326042311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326042311 = 7 ⋅46577473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113240623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113240594 and 113240603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113240423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145165 + ... + 145942.

It is an arithmetic number, because the mean of its divisors is an integer number (28383030).

Almost surely, 2^113240623 is an apocalyptic number.

113240623 is a deficient number, since it is larger than the sum of its proper divisors (291497).

113240623 is an equidigital number, since it uses as much as digits as its factorization.

113240623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291496.

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

The square root of 113240623 is about 10641.4577478840. The cubic root of 113240623 is about 483.8017296292.

Adding to 113240623 its reverse (326042311), we get a palindrome (439282934).

The spelling of 113240623 in words is "one hundred thirteen million, two hundred forty thousand, six hundred twenty-three".