243504132032213 has 8 divisors (see below), whose sum is σ = 262494089036088. Its totient is φ = 224551156446144.

The previous prime is 243504132032207. The next prime is 243504132032269. The reversal of 243504132032213 is 312230231405342.

It can be written as a sum of positive squares in 4 ways, for example, as 37349613313489 + 206154518718724 = 6111433^2 + 14358082^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243504132032213 - 2²⁶ = 243504064923349 is a prime.

It is a super-2 number, since 2×243504132032213² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243504132082213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9245340770 + ... + 9245367107.

It is an arithmetic number, because the mean of its divisors is an integer number (32811761129511).

Almost surely, 2^{243504132032213} is an apocalyptic number.

It is an amenable number.

243504132032213 is a deficient number, since it is larger than the sum of its proper divisors (18989957003875).

243504132032213 is a wasteful number, since it uses less digits than its factorization.

243504132032213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18490708903.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 243504132032213 its reverse (312230231405342), we get a palindrome (555734363437555).

The spelling of 243504132032213 in words is "two hundred forty-three trillion, five hundred four billion, one hundred thirty-two million, thirty-two thousand, two hundred thirteen".