11213155112 has 8 divisors (see below), whose sum is σ = 21024665850. Its totient is φ = 5606577552.

The previous prime is 11213155097. The next prime is 11213155117. The reversal of 11213155112 is 21155131211.

It can be written as a sum of positive squares in only one way, i.e., 10618478116 + 594676996 = 103046^2 + 24386^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11213155117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700822187 + ... + 700822202.

Almost surely, 2^11213155112 is an apocalyptic number.

It is an amenable number.

11213155112 is a deficient number, since it is larger than the sum of its proper divisors (9811510738).

11213155112 is a wasteful number, since it uses less digits than its factorization.

11213155112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401644395 (or 1401644391 counting only the distinct ones).

The product of its digits is 300, while the sum is 23.

Adding to 11213155112 its reverse (21155131211), we get a palindrome (32368286323).

The spelling of 11213155112 in words is "eleven billion, two hundred thirteen million, one hundred fifty-five thousand, one hundred twelve".