11121212310213 has 4 divisors (see below), whose sum is σ = 14828283080288. Its totient is φ = 7414141540140.

The previous prime is 11121212310209. The next prime is 11121212310251. The reversal of 11121212310213 is 31201321212111.

11121212310213 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11121212310213 - 2² = 11121212310209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121212310213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121212312213) 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, 1853535385033 + ... + 1853535385038.

It is an arithmetic number, because the mean of its divisors is an integer number (3707070770072).

Almost surely, 2^{11121212310213} is an apocalyptic number.

It is an amenable number.

11121212310213 is a deficient number, since it is larger than the sum of its proper divisors (3707070770075).

11121212310213 is an equidigital number, since it uses as much as digits as its factorization.

11121212310213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707070770074.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 11121212310213 its reverse (31201321212111), we get a palindrome (42322533522324).

The spelling of 11121212310213 in words is "eleven trillion, one hundred twenty-one billion, two hundred twelve million, three hundred ten thousand, two hundred thirteen".