23523531012 has 36 divisors (see below), whose sum is σ = 59467162300. Its totient is φ = 7840530432.

The previous prime is 23523531007. The next prime is 23523531049. The reversal of 23523531012 is 21013532532.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10719703296 + 12803827716 = 103536^2 + 113154^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×23523531012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 645864 + ... + 681312.

Almost surely, 2^23523531012 is an apocalyptic number.

It is an amenable number.

23523531012 is an abundant number, since it is smaller than the sum of its proper divisors (35943631288).

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

23523531012 is a wasteful number, since it uses less digits than its factorization.

23523531012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53892 (or 53887 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

It can be divided in two parts, 2352353 and 1012, that added together give a triangular number (2353365 = T₂₁₆₉).

The spelling of 23523531012 in words is "twenty-three billion, five hundred twenty-three million, five hundred thirty-one thousand, twelve".