243326730232653 has 16 divisors (see below), whose sum is σ = 343843859929536. Its totient is φ = 152531697578240.

The previous prime is 243326730232589. The next prime is 243326730232667. The reversal of 243326730232653 is 356232037623342.

It is not a de Polignac number, because 243326730232653 - 2⁶ = 243326730232589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243326730232596 and 243326730232605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243326730232853) 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, 2248349451 + ... + 2248457672.

It is an arithmetic number, because the mean of its divisors is an integer number (21490241245596).

Almost surely, 2^{243326730232653} is an apocalyptic number.

It is an amenable number.

243326730232653 is a deficient number, since it is larger than the sum of its proper divisors (100517129696883).

243326730232653 is a wasteful number, since it uses less digits than its factorization.

243326730232653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496808204.

The product of its (nonzero) digits is 19595520, while the sum is 51.

Adding to 243326730232653 its reverse (356232037623342), we get a palindrome (599558767855995).

The spelling of 243326730232653 in words is "two hundred forty-three trillion, three hundred twenty-six billion, seven hundred thirty million, two hundred thirty-two thousand, six hundred fifty-three".