10311331212 has 192 divisors, whose sum is σ = 33157555200. Its totient is φ = 2698375680.

The previous prime is 10311331201. The next prime is 10311331231. The reversal of 10311331212 is 21213311301.

10311331212 is a `hidden beast` number, since 1 + 0 + 311 + 331 + 21 + 2 = 666.

10311331212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1283464 + ... + 1291472.

It is an arithmetic number, because the mean of its divisors is an integer number (172695600).

Almost surely, 2^10311331212 is an apocalyptic number.

10311331212 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 10311331212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16578777600).

10311331212 is an abundant number, since it is smaller than the sum of its proper divisors (22846223988).

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

10311331212 is a wasteful number, since it uses less digits than its factorization.

10311331212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8173 (or 8165 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 10311331212 its reverse (21213311301), we get a palindrome (31524642513).

The spelling of 10311331212 in words is "ten billion, three hundred eleven million, three hundred thirty-one thousand, two hundred twelve".