11013313212 has 72 divisors (see below), whose sum is σ = 30754563840. Its totient is φ = 3295113120.

The previous prime is 11013313187. The next prime is 11013313217. The reversal of 11013313212 is 21231331011.

11013313212 is a `hidden beast` number, since 1 + 10 + 1 + 331 + 321 + 2 = 666.

It is a super-2 number, since 2×11013313212² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013313217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144738 + ... + 207305.

It is an arithmetic number, because the mean of its divisors is an integer number (427146720).

Almost surely, 2^11013313212 is an apocalyptic number.

11013313212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11013313212 is an abundant number, since it is smaller than the sum of its proper divisors (19741250628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11013313212 is a wasteful number, since it uses less digits than its factorization.

11013313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352143 (or 352138 counting only the distinct ones).

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

Adding to 11013313212 its reverse (21231331011), we get a palindrome (32244644223).

The spelling of 11013313212 in words is "eleven billion, thirteen million, three hundred thirteen thousand, two hundred twelve".