11013223012 has 72 divisors (see below), whose sum is σ = 21976106040. Its totient is φ = 4821696000.

The previous prime is 11013223003. The next prime is 11013223051. The reversal of 11013223012 is 21032231011.

It can be written as a sum of positive squares in 4 ways, for example, as 5312368996 + 5700854016 = 72886^2 + 75504^2 .

It is a super-2 number, since 2×11013223012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1805664 + ... + 1811752.

It is an arithmetic number, because the mean of its divisors is an integer number (305223695).

Almost surely, 2^11013223012 is an apocalyptic number.

It is an amenable number.

11013223012 is a deficient number, since it is larger than the sum of its proper divisors (10962883028).

11013223012 is a wasteful number, since it uses less digits than its factorization.

11013223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6253 (or 6240 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11013223012 its reverse (21032231011), we get a palindrome (32045454023).

The spelling of 11013223012 in words is "eleven billion, thirteen million, two hundred twenty-three thousand, twelve".