10213123312 has 60 divisors (see below), whose sum is σ = 23508450720. Its totient is φ = 4283908608.

The previous prime is 10213123243. The next prime is 10213123313. The reversal of 10213123312 is 21332131201.

It is a super-2 number, since 2×10213123312² (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 10213123312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10213123313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101737 + ... + 175432.

It is an arithmetic number, because the mean of its divisors is an integer number (391807512).

Almost surely, 2^10213123312 is an apocalyptic number.

It is an amenable number.

10213123312 is an abundant number, since it is smaller than the sum of its proper divisors (13295327408).

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

10213123312 is a wasteful number, since it uses less digits than its factorization.

10213123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277238 (or 277225 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10213123312 its reverse (21332131201), we get a palindrome (31545254513).

The spelling of 10213123312 in words is "ten billion, two hundred thirteen million, one hundred twenty-three thousand, three hundred twelve".