20130232 has 16 divisors (see below), whose sum is σ = 38021760. Its totient is φ = 9991104.

The previous prime is 20130223. The next prime is 20130233. The reversal of 20130232 is 23203102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8088 + ... + 10279.

It is an arithmetic number, because the mean of its divisors is an integer number (2376360).

Almost surely, 2^20130232 is an apocalyptic number.

It is an amenable number.

20130232 is a deficient number, since it is larger than the sum of its proper divisors (17891528).

20130232 is a wasteful number, since it uses less digits than its factorization.

20130232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18510 (or 18506 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20130232 is about 4486.6727092579. The cubic root of 20130232 is about 272.0296608370.

Adding to 20130232 its reverse (23203102), we get a palindrome (43333334).

The spelling of 20130232 in words is "twenty million, one hundred thirty thousand, two hundred thirty-two".