312230323020 has 192 divisors, whose sum is σ = 1094116294656. Its totient is φ = 64632088320.

The previous prime is 312230323001. The next prime is 312230323039. The reversal of 312230323020 is 20323032213.

It is an interprime number because it is at equal distance from previous prime (312230323001) and next prime (312230323039).

It is a super-2 number, since 2×312230323020² (a number of 24 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1086577 + ... + 1343543.

It is an arithmetic number, because the mean of its divisors is an integer number (5698522368).

Almost surely, 2^312230323020 is an apocalyptic number.

312230323020 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 312230323020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547058147328).

312230323020 is an abundant number, since it is smaller than the sum of its proper divisors (781885971636).

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

312230323020 is a wasteful number, since it uses less digits than its factorization.

312230323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257260 (or 257258 counting only the distinct ones).

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

Adding to 312230323020 its reverse (20323032213), we get a palindrome (332553355233).

The spelling of 312230323020 in words is "three hundred twelve billion, two hundred thirty million, three hundred twenty-three thousand, twenty".