20123232230 has 32 divisors (see below), whose sum is σ = 36427104000. Its totient is φ = 8003727072.

The previous prime is 20123232229. The next prime is 20123232257. The reversal of 20123232230 is 3223232102.

It is a super-3 number, since 3×20123232230³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5289509 + ... + 5293311.

It is an arithmetic number, because the mean of its divisors is an integer number (1138347000).

Almost surely, 2^20123232230 is an apocalyptic number.

20123232230 is a deficient number, since it is larger than the sum of its proper divisors (16303871770).

20123232230 is a wasteful number, since it uses less digits than its factorization.

20123232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6668.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20123232230 its reverse (3223232102), we get a palindrome (23346464332).

The spelling of 20123232230 in words is "twenty billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred thirty".