10320431212 has 48 divisors (see below), whose sum is σ = 22310858752. Its totient is φ = 4067703360.

The previous prime is 10320431159. The next prime is 10320431243. The reversal of 10320431212 is 21213402301.

It is a happy number.

It is a super-2 number, since 2×10320431212² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10320431212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46333 + ... + 150955.

Almost surely, 2^10320431212 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 10320431212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11155429376).

10320431212 is an abundant number, since it is smaller than the sum of its proper divisors (11990427540).

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

10320431212 is a wasteful number, since it uses less digits than its factorization.

10320431212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104918 (or 104916 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10320431212 its reverse (21213402301), we get a palindrome (31533833513).

The spelling of 10320431212 in words is "ten billion, three hundred twenty million, four hundred thirty-one thousand, two hundred twelve".