201230232312 has 64 divisors (see below), whose sum is σ = 521458560000. Its totient is φ = 64634885504.

The previous prime is 201230232293. The next prime is 201230232337. The reversal of 201230232312 is 213232032102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62689 + ... + 637487.

It is an arithmetic number, because the mean of its divisors is an integer number (8147790000).

Almost surely, 2^201230232312 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 201230232312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260729280000).

201230232312 is an abundant number, since it is smaller than the sum of its proper divisors (320228327688).

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

201230232312 is a wasteful number, since it uses less digits than its factorization.

201230232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575340 (or 575336 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 201230232312 its reverse (213232032102), we get a palindrome (414462264414).

The spelling of 201230232312 in words is "two hundred one billion, two hundred thirty million, two hundred thirty-two thousand, three hundred twelve".