243043132112123 has 8 divisors (see below), whose sum is σ = 280460313339648. Its totient is φ = 206300134330344.

The previous prime is 243043132112101. The next prime is 243043132112219. The reversal of 243043132112123 is 321211231340342.

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 243043132112123 - 2²² = 243043127917819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243043132112123.

It is not an unprimeable number, because it can be changed into a prime (243043132115123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168545860661 + ... + 168545862102.

It is an arithmetic number, because the mean of its divisors is an integer number (35057539167456).

Almost surely, 2^{243043132112123} is an apocalyptic number.

243043132112123 is a deficient number, since it is larger than the sum of its proper divisors (37417181227525).

243043132112123 is a wasteful number, since it uses less digits than its factorization.

243043132112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337091722873.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 243043132112123 its reverse (321211231340342), we get a palindrome (564254363452465).

The spelling of 243043132112123 in words is "two hundred forty-three trillion, forty-three billion, one hundred thirty-two million, one hundred twelve thousand, one hundred twenty-three".