20131210232 has 32 divisors (see below), whose sum is σ = 43143321600. Its totient is φ = 8626658784.

The previous prime is 20131210217. The next prime is 20131210243. The reversal of 20131210232 is 23201213102.

It is a self number, because there is not a number n which added to its sum of digits gives 20131210232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663833 + ... + 693495.

It is an arithmetic number, because the mean of its divisors is an integer number (1348228800).

Almost surely, 2^20131210232 is an apocalyptic number.

It is an amenable number.

20131210232 is an abundant number, since it is smaller than the sum of its proper divisors (23012111368).

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

20131210232 is a wasteful number, since it uses less digits than its factorization.

20131210232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41795 (or 41791 counting only the distinct ones).

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

Adding to 20131210232 its reverse (23201213102), we get a palindrome (43332423334).

The spelling of 20131210232 in words is "twenty billion, one hundred thirty-one million, two hundred ten thousand, two hundred thirty-two".