10320331212 has 72 divisors (see below), whose sum is σ = 26554207680. Its totient is φ = 3378676320.

The previous prime is 10320331183. The next prime is 10320331247. The reversal of 10320331212 is 21213302301.

10320331212 is a `hidden beast` number, since 1 + 0 + 320 + 331 + 2 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3845223 + ... + 3847905.

It is an arithmetic number, because the mean of its divisors is an integer number (368808440).

Almost surely, 2^10320331212 is an apocalyptic number.

10320331212 is a gapful number since it is divisible by the number (12) 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 10320331212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13277103840).

10320331212 is an abundant number, since it is smaller than the sum of its proper divisors (16233876468).

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

10320331212 is a wasteful number, since it uses less digits than its factorization.

10320331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563 (or 4558 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10320331212 its reverse (21213302301), we get a palindrome (31533633513).

The spelling of 10320331212 in words is "ten billion, three hundred twenty million, three hundred thirty-one thousand, two hundred twelve".