243132112512 has 128 divisors (see below), whose sum is σ = 736971787200. Its totient is φ = 78853616640.

The previous prime is 243132112511. The next prime is 243132112513. The reversal of 243132112512 is 215211231342.

It is a happy number.

243132112512 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 32 + 112 + 512 = 666.

243132112512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243132112511) and next prime (243132112513).

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×243132112512² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (243132112511) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 822814 + ... + 1078557.

Almost surely, 2^243132112512 is an apocalyptic number.

It is an amenable number.

243132112512 is an abundant number, since it is smaller than the sum of its proper divisors (493839674688).

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

243132112512 is a wasteful number, since it uses less digits than its factorization.

243132112512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901431 (or 1901413 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 243132112512 its reverse (215211231342), we get a palindrome (458343343854).

The spelling of 243132112512 in words is "two hundred forty-three billion, one hundred thirty-two million, one hundred twelve thousand, five hundred twelve".