122543301120243 has 4 divisors (see below), whose sum is σ = 163391068160328. Its totient is φ = 81695534080160.

The previous prime is 122543301120223. The next prime is 122543301120269. The reversal of 122543301120243 is 342021103345221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122543301120243 - 2¹² = 122543301116147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122543301120223) 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 3 ways as a sum of consecutive naturals, for example, 20423883520038 + ... + 20423883520043.

It is an arithmetic number, because the mean of its divisors is an integer number (40847767040082).

Almost surely, 2^{122543301120243} is an apocalyptic number.

122543301120243 is a deficient number, since it is larger than the sum of its proper divisors (40847767040085).

122543301120243 is an equidigital number, since it uses as much as digits as its factorization.

122543301120243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40847767040084.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 122543301120243 its reverse (342021103345221), we get a palindrome (464564404465464).

The spelling of 122543301120243 in words is "one hundred twenty-two trillion, five hundred forty-three billion, three hundred one million, one hundred twenty thousand, two hundred forty-three".