312101232 has 80 divisors (see below), whose sum is σ = 865873152. Its totient is φ = 96517120.

The previous prime is 312101221. The next prime is 312101233. The reversal of 312101232 is 232101213.

312101232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312101233) 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, 55243 + ... + 60629.

Almost surely, 2^312101232 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 312101232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432936576).

312101232 is an abundant number, since it is smaller than the sum of its proper divisors (553771920).

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

312101232 is a wasteful number, since it uses less digits than its factorization.

312101232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486 (or 5480 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 312101232 is about 17666.3870669699. The cubic root of 312101232 is about 678.3156351828.

Adding to 312101232 its reverse (232101213), we get a palindrome (544202445).

The spelling of 312101232 in words is "three hundred twelve million, one hundred one thousand, two hundred thirty-two".