12331021213 has 16 divisors (see below), whose sum is σ = 14926308480. Its totient is φ = 9944557056.

The previous prime is 12331021207. The next prime is 12331021253. The reversal of 12331021213 is 31212013321.

It is not a de Polignac number, because 12331021213 - 2¹³ = 12331013021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331021253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405270 + ... + 434632.

It is an arithmetic number, because the mean of its divisors is an integer number (932894280).

Almost surely, 2^12331021213 is an apocalyptic number.

It is an amenable number.

12331021213 is a deficient number, since it is larger than the sum of its proper divisors (2595287267).

12331021213 is a wasteful number, since it uses less digits than its factorization.

12331021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32916.

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

Adding to 12331021213 its reverse (31212013321), we get a palindrome (43543034534).

The spelling of 12331021213 in words is "twelve billion, three hundred thirty-one million, twenty-one thousand, two hundred thirteen".