23530120 has 32 divisors (see below), whose sum is σ = 53080920. Its totient is φ = 9387520.

The previous prime is 23530093. The next prime is 23530121. The reversal of 23530120 is 2103532.

It can be written as a sum of positive squares in 4 ways, for example, as 4919524 + 18610596 = 2218^2 + 4314^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23530094 and 23530103.

It is not an unprimeable number, because it can be changed into a prime (23530121) 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, 30054 + ... + 30826.

Almost surely, 2^23530120 is an apocalyptic number.

23530120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23530120 is an abundant number, since it is smaller than the sum of its proper divisors (29550800).

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

23530120 is a wasteful number, since it uses less digits than its factorization.

23530120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1541 counting only the distinct ones).

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

The square root of 23530120 is about 4850.7855034005. The cubic root of 23530120 is about 286.5550373612. Note that the first 3 decimals are identical.

Adding to 23530120 its reverse (2103532), we get a palindrome (25633652).

The spelling of 23530120 in words is "twenty-three million, five hundred thirty thousand, one hundred twenty".