243134044431 has 16 divisors (see below), whose sum is σ = 328857781248. Its totient is φ = 159751407200.

The previous prime is 243134044379. The next prime is 243134044469. The reversal of 243134044431 is 134440431342.

It is a cyclic number.

It is not a de Polignac number, because 243134044431 - 2⁷ = 243134044303 is a prime.

It is a super-2 number, since 2×243134044431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243134044392 and 243134044401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243134044481) 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, 428461 + ... + 818441.

It is an arithmetic number, because the mean of its divisors is an integer number (20553611328).

Almost surely, 2^243134044431 is an apocalyptic number.

243134044431 is a deficient number, since it is larger than the sum of its proper divisors (85723736817).

243134044431 is a wasteful number, since it uses less digits than its factorization.

243134044431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392982.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 243134044431 its reverse (134440431342), we get a palindrome (377574475773).

The spelling of 243134044431 in words is "two hundred forty-three billion, one hundred thirty-four million, forty-four thousand, four hundred thirty-one".