243213527404523 has 32 divisors (see below), whose sum is σ = 290758759183872. Its totient is φ = 201153856780800.

The previous prime is 243213527404487. The next prime is 243213527404531. The reversal of 243213527404523 is 325404725312342.

It is a cyclic number.

It is not a de Polignac number, because 243213527404523 - 2¹⁰ = 243213527403499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243213527404723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112312373 + ... + 114457398.

It is an arithmetic number, because the mean of its divisors is an integer number (9086211224496).

Almost surely, 2^{243213527404523} is an apocalyptic number.

243213527404523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

243213527404523 is a deficient number, since it is larger than the sum of its proper divisors (47545231779349).

243213527404523 is a wasteful number, since it uses less digits than its factorization.

243213527404523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226770035.

The product of its (nonzero) digits is 4838400, while the sum is 47.

The spelling of 243213527404523 in words is "two hundred forty-three trillion, two hundred thirteen billion, five hundred twenty-seven million, four hundred four thousand, five hundred twenty-three".