11515330412112 has 40 divisors (see below), whose sum is σ = 29753429158656. Its totient is φ = 3837734791936.

The previous prime is 11515330412099. The next prime is 11515330412123. The reversal of 11515330412112 is 21121403351511.

It is a super-2 number, since 2×11515330412112² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11515330412112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21883488 + ... + 22403519.

Almost surely, 2^{11515330412112} is an apocalyptic number.

11515330412112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11515330412112 is an abundant number, since it is smaller than the sum of its proper divisors (18238098746544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11515330412112 is a wasteful number, since it uses less digits than its factorization.

11515330412112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44292435 (or 44292429 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 11515330412112 its reverse (21121403351511), we get a palindrome (32636733763623).

The spelling of 11515330412112 in words is "eleven trillion, five hundred fifteen billion, three hundred thirty million, four hundred twelve thousand, one hundred twelve".