12031111120213 has 4 divisors (see below), whose sum is σ = 12445977020940. Its totient is φ = 11616245219488.

The previous prime is 12031111120183. The next prime is 12031111120219. The reversal of 12031111120213 is 31202111113021.

12031111120213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5151706049169 + 6879405071044 = 2269737^2 + 2622862^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031111120213 - 2⁴¹ = 9832087864661 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 (12031111120219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207432950320 + ... + 207432950377.

It is an arithmetic number, because the mean of its divisors is an integer number (3111494255235).

Almost surely, 2^{12031111120213} is an apocalyptic number.

It is an amenable number.

12031111120213 is a deficient number, since it is larger than the sum of its proper divisors (414865900727).

12031111120213 is an equidigital number, since it uses as much as digits as its factorization.

12031111120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414865900726.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12031111120213 its reverse (31202111113021), we get a palindrome (43233222233234).

The spelling of 12031111120213 in words is "twelve trillion, thirty-one billion, one hundred eleven million, one hundred twenty thousand, two hundred thirteen".