243132142204 has 24 divisors (see below), whose sum is σ = 487489153760. Its totient is φ = 103937017536.

The previous prime is 243132142193. The next prime is 243132142207. The reversal of 243132142204 is 402241231342.

It is a super-2 number, since 2×243132142204² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243132142207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10925019 + ... + 10947250.

Almost surely, 2^243132142204 is an apocalyptic number.

It is an amenable number.

243132142204 is an abundant number, since it is smaller than the sum of its proper divisors (244357011556).

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

243132142204 is a wasteful number, since it uses less digits than its factorization.

243132142204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21872677 (or 21872675 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 243132142204 its reverse (402241231342), we get a palindrome (645373373546).

The spelling of 243132142204 in words is "two hundred forty-three billion, one hundred thirty-two million, one hundred forty-two thousand, two hundred four".