20023315 has 8 divisors (see below), whose sum is σ = 25876368. Its totient is φ = 14786400.

The previous prime is 20023313. The next prime is 20023343. The reversal of 20023315 is 51332002.

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

It is not a de Polignac number, because 20023315 - 2¹ = 20023313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153961 + ... + 154090.

It is an arithmetic number, because the mean of its divisors is an integer number (3234546).

Almost surely, 2^20023315 is an apocalyptic number.

20023315 is a deficient number, since it is larger than the sum of its proper divisors (5853053).

20023315 is a wasteful number, since it uses less digits than its factorization.

20023315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308069.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20023315 is about 4474.7418919978. The cubic root of 20023315 is about 271.5471984437.

Adding to 20023315 its reverse (51332002), we get a palindrome (71355317).

The spelling of 20023315 in words is "twenty million, twenty-three thousand, three hundred fifteen".