11520961212 has 48 divisors (see below), whose sum is σ = 27260344832. Its totient is φ = 3786600960.

The previous prime is 11520961181. The next prime is 11520961213. The reversal of 11520961212 is 21216902511.

It is a self number, because there is not a number n which added to its sum of digits gives 11520961212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520961213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297183 + ... + 333705.

Almost surely, 2^11520961212 is an apocalyptic number.

11520961212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11520961212 is an abundant number, since it is smaller than the sum of its proper divisors (15739383620).

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

11520961212 is a wasteful number, since it uses less digits than its factorization.

11520961212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36898 (or 36896 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The spelling of 11520961212 in words is "eleven billion, five hundred twenty million, nine hundred sixty-one thousand, two hundred twelve".