11534531412 has 12 divisors (see below), whose sum is σ = 26913906656. Its totient is φ = 3844843800.

The previous prime is 11534531383. The next prime is 11534531471. The reversal of 11534531412 is 21413543511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11534531412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480605464 + ... + 480605487.

Almost surely, 2^11534531412 is an apocalyptic number.

11534531412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11534531412 is an abundant number, since it is smaller than the sum of its proper divisors (15379375244).

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

11534531412 is a wasteful number, since it uses less digits than its factorization.

11534531412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961210958 (or 961210956 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The spelling of 11534531412 in words is "eleven billion, five hundred thirty-four million, five hundred thirty-one thousand, four hundred twelve".