20112310232 has 64 divisors (see below), whose sum is σ = 44230233600. Its totient is φ = 8393852160.

The previous prime is 20112310213. The next prime is 20112310237. The reversal of 20112310232 is 23201321102.

It is a self number, because there is not a number n which added to its sum of digits gives 20112310232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112310237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1284869 + ... + 1300427.

It is an arithmetic number, because the mean of its divisors is an integer number (691097400).

Almost surely, 2^20112310232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112310232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22115116800).

20112310232 is an abundant number, since it is smaller than the sum of its proper divisors (24117923368).

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

20112310232 is a wasteful number, since it uses less digits than its factorization.

20112310232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16176 (or 16172 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20112310232 its reverse (23201321102), we get a palindrome (43313631334).

The spelling of 20112310232 in words is "twenty billion, one hundred twelve million, three hundred ten thousand, two hundred thirty-two".