123403522 has 16 divisors (see below), whose sum is σ = 206859744. Its totient is φ = 54724000.

The previous prime is 123403457. The next prime is 123403523. The reversal of 123403522 is 225304321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 123403493 and 123403502.

It is not an unprimeable number, because it can be changed into a prime (123403523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67504 + ... + 69307.

It is an arithmetic number, because the mean of its divisors is an integer number (12928734).

Almost surely, 2^123403522 is an apocalyptic number.

123403522 is a deficient number, since it is larger than the sum of its proper divisors (83456222).

123403522 is a wasteful number, since it uses less digits than its factorization.

123403522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136865.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 123403522 is about 11108.7137869332. The cubic root of 123403522 is about 497.8622356198.

Adding to 123403522 its reverse (225304321), we get a palindrome (348707843).

The spelling of 123403522 in words is "one hundred twenty-three million, four hundred three thousand, five hundred twenty-two".