11213321012 has 12 divisors (see below), whose sum is σ = 19755012900. Its totient is φ = 5569031616.

The previous prime is 11213321003. The next prime is 11213321027. The reversal of 11213321012 is 21012331211.

It can be written as a sum of positive squares in 2 ways, for example, as 3586093456 + 7627227556 = 59884^2 + 87334^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9406553 + ... + 9407744.

It is an arithmetic number, because the mean of its divisors is an integer number (1646251075).

Almost surely, 2^11213321012 is an apocalyptic number.

It is an amenable number.

11213321012 is a deficient number, since it is larger than the sum of its proper divisors (8541691888).

11213321012 is a wasteful number, since it uses less digits than its factorization.

11213321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18814450 (or 18814448 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11213321012 its reverse (21012331211), we get a palindrome (32225652223).

The spelling of 11213321012 in words is "eleven billion, two hundred thirteen million, three hundred twenty-one thousand, twelve".