11115315412 has 12 divisors (see below), whose sum is σ = 19452560596. Its totient is φ = 5557440960.

The previous prime is 11115315389. The next prime is 11115315413. The reversal of 11115315412 is 21451351111.

It can be written as a sum of positive squares in 2 ways, for example, as 11053157956 + 62157456 = 105134^2 + 7884^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115315413) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 133198 + ... + 199930.

Almost surely, 2^11115315412 is an apocalyptic number.

It is an amenable number.

11115315412 is a deficient number, since it is larger than the sum of its proper divisors (8337245184).

11115315412 is a wasteful number, since it uses less digits than its factorization.

11115315412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108378 (or 108376 counting only the distinct ones).

The product of its digits is 600, while the sum is 25.

Adding to 11115315412 its reverse (21451351111), we get a palindrome (32566666523).

The spelling of 11115315412 in words is "eleven billion, one hundred fifteen million, three hundred fifteen thousand, four hundred twelve".