23310020 has 24 divisors (see below), whose sum is σ = 49241304. Its totient is φ = 9268736.

The previous prime is 23310011. The next prime is 23310041. The reversal of 23310020 is 2001332.

It can be written as a sum of positive squares in 4 ways, for example, as 6728836 + 16581184 = 2594^2 + 4072^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23309983 and 23310010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92 + ... + 6828.

It is an arithmetic number, because the mean of its divisors is an integer number (2051721).

Almost surely, 2^23310020 is an apocalyptic number.

23310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23310020 is an abundant number, since it is smaller than the sum of its proper divisors (25931284).

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

23310020 is a wasteful number, since it uses less digits than its factorization.

23310020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6919 (or 6917 counting only the distinct ones).

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

The square root of 23310020 is about 4828.0451530614. The cubic root of 23310020 is about 285.6587613532.

Adding to 23310020 its reverse (2001332), we get a palindrome (25311352).

The spelling of 23310020 in words is "twenty-three million, three hundred ten thousand, twenty".