312332030220 has 96 divisors (see below), whose sum is σ = 1000245657600. Its totient is φ = 71334238464.

The previous prime is 312332030161. The next prime is 312332030221. The reversal of 312332030220 is 22030233213.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (312332030221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246466 + ... + 827894.

It is an arithmetic number, because the mean of its divisors is an integer number (10419225600).

Almost surely, 2^312332030220 is an apocalyptic number.

312332030220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312332030220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500122828800).

312332030220 is an abundant number, since it is smaller than the sum of its proper divisors (687913627380).

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

312332030220 is a wasteful number, since it uses less digits than its factorization.

312332030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582727 (or 582725 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 312332030220 its reverse (22030233213), we get a palindrome (334362263433).

The spelling of 312332030220 in words is "three hundred twelve billion, three hundred thirty-two million, thirty thousand, two hundred twenty".