123244043122 has 4 divisors (see below), whose sum is σ = 184866064686. Its totient is φ = 61622021560.

The previous prime is 123244043119. The next prime is 123244043123. The reversal of 123244043122 is 221340442321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221340442321 = 43 ⋅5147452147.

It can be written as a sum of positive squares in only one way, i.e., 67897246041 + 55346797081 = 260571^2 + 235259^2 .

It is not an unprimeable number, because it can be changed into a prime (123244043123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30811010779 + ... + 30811010782.

Almost surely, 2^123244043122 is an apocalyptic number.

123244043122 is a deficient number, since it is larger than the sum of its proper divisors (61622021564).

123244043122 is an equidigital number, since it uses as much as digits as its factorization.

123244043122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61622021563.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 123244043122 its reverse (221340442321), we get a palindrome (344584485443).

The spelling of 123244043122 in words is "one hundred twenty-three billion, two hundred forty-four million, forty-three thousand, one hundred twenty-two".