10213323012 has 18 divisors (see below), whose sum is σ = 25817011038. Its totient is φ = 3404440992.

The previous prime is 10213322989. The next prime is 10213323013. The reversal of 10213323012 is 21032331201.

10213323012 is a `hidden beast` number, since 10 + 21 + 332 + 301 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9014363136 + 1198959876 = 94944^2 + 34626^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is not an unprimeable number, because it can be changed into a prime (10213323013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141851673 + ... + 141851744.

It is an arithmetic number, because the mean of its divisors is an integer number (1434278391).

Almost surely, 2^10213323012 is an apocalyptic number.

10213323012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10213323012 is an abundant number, since it is smaller than the sum of its proper divisors (15603688026).

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

10213323012 is a wasteful number, since it uses less digits than its factorization.

10213323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283703427 (or 283703422 counting only the distinct ones).

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

Adding to 10213323012 its reverse (21032331201), we get a palindrome (31245654213).

The spelling of 10213323012 in words is "ten billion, two hundred thirteen million, three hundred twenty-three thousand, twelve".