123428000522 has 32 divisors (see below), whose sum is σ = 191094059520. Its totient is φ = 59747112000.

The previous prime is 123428000477. The next prime is 123428000587. The reversal of 123428000522 is 225000824321.

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 15 ways as a sum of consecutive naturals, for example, 22824743 + ... + 22830149.

It is an arithmetic number, because the mean of its divisors is an integer number (5971689360).

Almost surely, 2^123428000522 is an apocalyptic number.

123428000522 is a deficient number, since it is larger than the sum of its proper divisors (67666058998).

123428000522 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (123428000521) it forms an eRAP, since the sums of their prime factors are consecutive (6925 and 6926).

123428000522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 123428000522 its reverse (225000824321), we get a palindrome (348428824843).

The spelling of 123428000522 in words is "one hundred twenty-three billion, four hundred twenty-eight million, five hundred twenty-two", and thus it is an aban number.