243351532053 has 72 divisors (see below), whose sum is σ = 417157954200. Its totient is φ = 136276310016.

The previous prime is 243351532013. The next prime is 243351532093. The reversal of 243351532053 is 350235153342.

243351532053 is a `hidden beast` number, since 2 + 43 + 35 + 1 + 532 + 0 + 53 = 666.

It is an interprime number because it is at equal distance from previous prime (243351532013) and next prime (243351532093).

It can be written as a sum of positive squares in 4 ways, for example, as 25754472324 + 217597059729 = 160482^2 + 466473^2 .

It is not a de Polignac number, because 243351532053 - 2¹⁰ = 243351531029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243351531999 and 243351532017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243351532013) 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 71 ways as a sum of consecutive naturals, for example, 4407703 + ... + 4462571.

It is an arithmetic number, because the mean of its divisors is an integer number (5793860475).

Almost surely, 2^243351532053 is an apocalyptic number.

It is an amenable number.

243351532053 is a deficient number, since it is larger than the sum of its proper divisors (173806422147).

243351532053 is a wasteful number, since it uses less digits than its factorization.

243351532053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55091 (or 55081 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

Adding to 243351532053 its reverse (350235153342), we get a palindrome (593586685395).

The spelling of 243351532053 in words is "two hundred forty-three billion, three hundred fifty-one million, five hundred thirty-two thousand, fifty-three".