23001320 has 16 divisors (see below), whose sum is σ = 51753060. Its totient is φ = 9200512.

The previous prime is 23001313. The next prime is 23001337. The reversal of 23001320 is 2310032.

It can be written as a sum of positive squares in 2 ways, for example, as 19307236 + 3694084 = 4394^2 + 1922^2 .

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, 287477 + ... + 287556.

Almost surely, 2^23001320 is an apocalyptic number.

23001320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23001320 is an abundant number, since it is smaller than the sum of its proper divisors (28751740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23001320 is a wasteful number, since it uses less digits than its factorization.

23001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575044 (or 575040 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 23001320 is about 4795.9691408515. The cubic root of 23001320 is about 284.3921383223.

Adding to 23001320 its reverse (2310032), we get a palindrome (25311352).

The spelling of 23001320 in words is "twenty-three million, one thousand, three hundred twenty".