11013231213 has 48 divisors (see below), whose sum is σ = 16771862016. Its totient is φ = 6955061760.

The previous prime is 11013231211. The next prime is 11013231223. The reversal of 11013231213 is 31213231011.

It is not a de Polignac number, because 11013231213 - 2¹ = 11013231211 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013231211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2788306 + ... + 2792252.

It is an arithmetic number, because the mean of its divisors is an integer number (349413792).

Almost surely, 2^11013231213 is an apocalyptic number.

It is an amenable number.

11013231213 is a deficient number, since it is larger than the sum of its proper divisors (5758630803).

11013231213 is a wasteful number, since it uses less digits than its factorization.

11013231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194 (or 4191 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11013231213 its reverse (31213231011), we get a palindrome (42226462224).

The spelling of 11013231213 in words is "eleven billion, thirteen million, two hundred thirty-one thousand, two hundred thirteen".