243125551143 has 12 divisors (see below), whose sum is σ = 351703175200. Its totient is φ = 161842859136.

The previous prime is 243125551093. The next prime is 243125551147. The reversal of 243125551143 is 341155521342.

243125551143 is a `hidden beast` number, since 2 + 43 + 1 + 25 + 551 + 1 + 43 = 666.

It is not a de Polignac number, because 243125551143 - 2⁶ = 243125551079 is a prime.

It is a super-2 number, since 2×243125551143² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243125551098 and 243125551107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243125551147) 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 11 ways as a sum of consecutive naturals, for example, 20063743 + ... + 20075856.

Almost surely, 2^243125551143 is an apocalyptic number.

243125551143 is a deficient number, since it is larger than the sum of its proper divisors (108577624057).

243125551143 is a wasteful number, since it uses less digits than its factorization.

243125551143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40140278 (or 40140275 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 243125551143 in words is "two hundred forty-three billion, one hundred twenty-five million, five hundred fifty-one thousand, one hundred forty-three".