23113018 has 8 divisors (see below), whose sum is σ = 34799220. Its totient is φ = 11513280.

The previous prime is 23113009. The next prime is 23113019. The reversal of 23113018 is 81031132.

It can be written as a sum of positive squares in 2 ways, for example, as 18037009 + 5076009 = 4247^2 + 2253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23112986 and 23113004.

It is not an unprimeable number, because it can be changed into a prime (23113019) 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, 20943 + ... + 22018.

Almost surely, 2^23113018 is an apocalyptic number.

23113018 is a deficient number, since it is larger than the sum of its proper divisors (11686202).

23113018 is a wasteful number, since it uses less digits than its factorization.

23113018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43232.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 23113018 is about 4807.6000249605. The cubic root of 23113018 is about 284.8517460183.

It can be divided in two parts, 2311 and 3018, that added together give a square (5329 = 73²).

The spelling of 23113018 in words is "twenty-three million, one hundred thirteen thousand, eighteen".