11923529532 has 24 divisors (see below), whose sum is σ = 28021728000. Its totient is φ = 3945915696.

The previous prime is 11923529507. The next prime is 11923529551. The reversal of 11923529532 is 23592532911.

It is a super-2 number, since 2×11923529532² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 3572532 + ... + 3575867.

It is an arithmetic number, because the mean of its divisors is an integer number (1167572000).

Almost surely, 2^11923529532 is an apocalyptic number.

11923529532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11923529532 is an abundant number, since it is smaller than the sum of its proper divisors (16098198468).

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

11923529532 is a wasteful number, since it uses less digits than its factorization.

11923529532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148545 (or 7148543 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The spelling of 11923529532 in words is "eleven billion, nine hundred twenty-three million, five hundred twenty-nine thousand, five hundred thirty-two".