23120018 has 8 divisors (see below), whose sum is σ = 35875980. Its totient is φ = 11161360.

The previous prime is 23119973. The next prime is 23120029. The reversal of 23120018 is 81002132.

It can be written as a sum of positive squares in 2 ways, for example, as 23107249 + 12769 = 4807^2 + 113^2 .

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 = 23119978 and 23120005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199253 + ... + 199368.

Almost surely, 2^23120018 is an apocalyptic number.

23120018 is a deficient number, since it is larger than the sum of its proper divisors (12755962).

23120018 is a wasteful number, since it uses less digits than its factorization.

23120018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398652.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 23120018 is about 4808.3279838214. The cubic root of 23120018 is about 284.8804998135.

It can be divided in two parts, 231200 and 18, that multiplied together give a square (4161600 = 2040²).

The spelling of 23120018 in words is "twenty-three million, one hundred twenty thousand, eighteen".