12011012532 has 24 divisors (see below), whose sum is σ = 31139662400. Its totient is φ = 4003670808.

The previous prime is 12011012501. The next prime is 12011012537. The reversal of 12011012532 is 23521011021.

12011012532 is a `hidden beast` number, since 1 + 20 + 110 + 1 + 2 + 532 = 666.

12011012532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12011012532² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011012537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55606432 + ... + 55606647.

Almost surely, 2^12011012532 is an apocalyptic number.

12011012532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12011012532 is an abundant number, since it is smaller than the sum of its proper divisors (19128649868).

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

12011012532 is a wasteful number, since it uses less digits than its factorization.

12011012532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111213092 (or 111213084 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 12011012532 its reverse (23521011021), we get a palindrome (35532023553).

The spelling of 12011012532 in words is "twelve billion, eleven million, twelve thousand, five hundred thirty-two".