11215211023 has 16 divisors (see below), whose sum is σ = 11647389600. Its totient is φ = 10791728640.

The previous prime is 11215211009. The next prime is 11215211027. The reversal of 11215211023 is 32011251211.

11215211023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11215211023 - 2⁹ = 11215210511 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 (11215211027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070173 + ... + 1080601.

It is an arithmetic number, because the mean of its divisors is an integer number (727961850).

Almost surely, 2^11215211023 is an apocalyptic number.

11215211023 is a deficient number, since it is larger than the sum of its proper divisors (432178577).

11215211023 is a wasteful number, since it uses less digits than its factorization.

11215211023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10842.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 11215211023 its reverse (32011251211), we get a palindrome (43226462234).

The spelling of 11215211023 in words is "eleven billion, two hundred fifteen million, two hundred eleven thousand, twenty-three".