12011311213 has 8 divisors (see below), whose sum is σ = 13104042336. Its totient is φ = 10918712400.

The previous prime is 12011311199. The next prime is 12011311241. The reversal of 12011311213 is 31211311021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011311213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011311283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331743 + ... + 366163.

It is an arithmetic number, because the mean of its divisors is an integer number (1638005292).

Almost surely, 2^12011311213 is an apocalyptic number.

It is an amenable number.

12011311213 is a deficient number, since it is larger than the sum of its proper divisors (1092731123).

12011311213 is a wasteful number, since it uses less digits than its factorization.

12011311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66155.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12011311213 its reverse (31211311021), we get a palindrome (43222622234).

The spelling of 12011311213 in words is "twelve billion, eleven million, three hundred eleven thousand, two hundred thirteen".