243431122053 has 16 divisors (see below), whose sum is σ = 370953438336. Its totient is φ = 139099457280.

The previous prime is 243431122037. The next prime is 243431122079. The reversal of 243431122053 is 350221134342.

It is not a de Polignac number, because 243431122053 - 2⁴ = 243431122037 is a prime.

It is a super-2 number, since 2×243431122053² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243431122053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243431122093) 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, 668425 + ... + 966257.

It is an arithmetic number, because the mean of its divisors is an integer number (23184589896).

Almost surely, 2^243431122053 is an apocalyptic number.

It is an amenable number.

243431122053 is a deficient number, since it is larger than the sum of its proper divisors (127522316283).

243431122053 is a wasteful number, since it uses less digits than its factorization.

243431122053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336764.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 243431122053 its reverse (350221134342), we get a palindrome (593652256395).

The spelling of 243431122053 in words is "two hundred forty-three billion, four hundred thirty-one million, one hundred twenty-two thousand, fifty-three".