10001213312 has 96 divisors (see below), whose sum is σ = 21545092800. Its totient is φ = 4620994560.

The previous prime is 10001213311. The next prime is 10001213363. The reversal of 10001213312 is 21331210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001213311) 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, 1891889 + ... + 1897167.

It is an arithmetic number, because the mean of its divisors is an integer number (224428050).

Almost surely, 2^10001213312 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 10001213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10772546400).

10001213312 is an abundant number, since it is smaller than the sum of its proper divisors (11543879488).

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

10001213312 is an equidigital number, since it uses as much as digits as its factorization.

10001213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5372 (or 5341 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10001213312 its reverse (21331210001), we get a palindrome (31332423313).

It can be divided in two parts, 10001 and 213312, that multiplied together give a palindrome (2133333312).

The spelling of 10001213312 in words is "ten billion, one million, two hundred thirteen thousand, three hundred twelve".