12213031013 has 8 divisors (see below), whose sum is σ = 12932443800. Its totient is φ = 11493729280.

The previous prime is 12213031009. The next prime is 12213031043. The reversal of 12213031013 is 31013031221.

12213031013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6454194244 + 5758836769 = 80338^2 + 75887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12213031013 - 2² = 12213031009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12213030982 and 12213031000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213031043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331853 + ... + 366813.

It is an arithmetic number, because the mean of its divisors is an integer number (1616555475).

Almost surely, 2^12213031013 is an apocalyptic number.

It is an amenable number.

12213031013 is a deficient number, since it is larger than the sum of its proper divisors (719412787).

12213031013 is a wasteful number, since it uses less digits than its factorization.

12213031013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55527.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12213031013 its reverse (31013031221), we get a palindrome (43226062234).

The spelling of 12213031013 in words is "twelve billion, two hundred thirteen million, thirty-one thousand, thirteen".