11211112213013 has 16 divisors (see below), whose sum is σ = 12089336313600. Its totient is φ = 10361718904320.

The previous prime is 11211112213009. The next prime is 11211112213057. The reversal of 11211112213013 is 31031221111211.

It is a cyclic number.

It is not a de Polignac number, because 11211112213013 - 2² = 11211112213009 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 (11211112213913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31418045 + ... + 31772877.

It is an arithmetic number, because the mean of its divisors is an integer number (755583519600).

Almost surely, 2^{11211112213013} is an apocalyptic number.

It is an amenable number.

11211112213013 is a deficient number, since it is larger than the sum of its proper divisors (878224100587).

11211112213013 is a wasteful number, since it uses less digits than its factorization.

11211112213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395452.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 11211112213013 its reverse (31031221111211), we get a palindrome (42242333324224).

The spelling of 11211112213013 in words is "eleven trillion, two hundred eleven billion, one hundred twelve million, two hundred thirteen thousand, thirteen".