123020522 has 16 divisors (see below), whose sum is σ = 186967872. Its totient is φ = 60702240.

The previous prime is 123020507. The next prime is 123020533. The reversal of 123020522 is 225020321.

It is a self number, because there is not a number n which added to its sum of digits gives 123020522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70622 + ... + 72342.

It is an arithmetic number, because the mean of its divisors is an integer number (11685492).

Almost surely, 2^123020522 is an apocalyptic number.

123020522 is a deficient number, since it is larger than the sum of its proper divisors (63947350).

123020522 is a wasteful number, since it uses less digits than its factorization.

123020522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 123020522 is about 11091.4616710333. The cubic root of 123020522 is about 497.3466402716.

Adding to 123020522 its reverse (225020321), we get a palindrome (348040843).

The spelling of 123020522 in words is "one hundred twenty-three million, twenty thousand, five hundred twenty-two".