11212212023013 has 4 divisors (see below), whose sum is σ = 14949616030688. Its totient is φ = 7474808015340.

The previous prime is 11212212023009. The next prime is 11212212023041. The reversal of 11212212023013 is 31032021221211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11212212023013 - 2² = 11212212023009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212212025013) 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 3 ways as a sum of consecutive naturals, for example, 1868702003833 + ... + 1868702003838.

It is an arithmetic number, because the mean of its divisors is an integer number (3737404007672).

Almost surely, 2^{11212212023013} is an apocalyptic number.

It is an amenable number.

11212212023013 is a deficient number, since it is larger than the sum of its proper divisors (3737404007675).

11212212023013 is an equidigital number, since it uses as much as digits as its factorization.

11212212023013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737404007674.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11212212023013 its reverse (31032021221211), we get a palindrome (42244233244224).

The spelling of 11212212023013 in words is "eleven trillion, two hundred twelve billion, two hundred twelve million, twenty-three thousand, thirteen".