11515330412312 has 16 divisors (see below), whose sum is σ = 21664934781840. Its totient is φ = 5738014470496.

The previous prime is 11515330412227. The next prime is 11515330412317. The reversal of 11515330412312 is 21321403351511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515330412317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2456339468 + ... + 2456344155.

It is an arithmetic number, because the mean of its divisors is an integer number (1354058423865).

Almost surely, 2^{11515330412312} is an apocalyptic number.

It is an amenable number.

11515330412312 is a deficient number, since it is larger than the sum of its proper divisors (10149604369528).

11515330412312 is a wasteful number, since it uses less digits than its factorization.

11515330412312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912683922 (or 4912683918 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 11515330412312 its reverse (21321403351511), we get a palindrome (32836733763823).

The spelling of 11515330412312 in words is "eleven trillion, five hundred fifteen billion, three hundred thirty million, four hundred twelve thousand, three hundred twelve".