243143002131 has 16 divisors (see below), whose sum is σ = 324907933056. Its totient is φ = 161737036416.

The previous prime is 243143002097. The next prime is 243143002153. The reversal of 243143002131 is 131200341342.

It is a happy number.

It is not a de Polignac number, because 243143002131 - 2¹¹ = 243143000083 is a prime.

It is a super-2 number, since 2×243143002131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243143007131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2955156 + ... + 3036318.

It is an arithmetic number, because the mean of its divisors is an integer number (20306745816).

Almost surely, 2^243143002131 is an apocalyptic number.

243143002131 is a deficient number, since it is larger than the sum of its proper divisors (81764930925).

243143002131 is a wasteful number, since it uses less digits than its factorization.

243143002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83362.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 243143002131 its reverse (131200341342), we get a palindrome (374343343473).

The spelling of 243143002131 in words is "two hundred forty-three billion, one hundred forty-three million, two thousand, one hundred thirty-one".