123043144522 has 16 divisors (see below), whose sum is σ = 186833936520. Its totient is φ = 60767659008.

The previous prime is 123043144519. The next prime is 123043144559. The reversal of 123043144522 is 225441340321.

It can be written as a sum of positive squares in 4 ways, for example, as 122984177481 + 58967041 = 350691^2 + 7679^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524283 + ... + 721774.

Almost surely, 2^123043144522 is an apocalyptic number.

123043144522 is a deficient number, since it is larger than the sum of its proper divisors (63790791998).

123043144522 is a wasteful number, since it uses less digits than its factorization.

123043144522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246665.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 123043144522 its reverse (225441340321), we get a palindrome (348484484843).

The spelling of 123043144522 in words is "one hundred twenty-three billion, forty-three million, one hundred forty-four thousand, five hundred twenty-two".