123105020224 has 14 divisors (see below), whose sum is σ = 244286524634. Its totient is φ = 61552510080.

The previous prime is 123105020177. The next prime is 123105020231. The reversal of 123105020224 is 422020501321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 94598074624 + 28506945600 = 307568^2 + 168840^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123105020195 and 123105020204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961757907 + ... + 961758034.

Almost surely, 2^123105020224 is an apocalyptic number.

It is an amenable number.

123105020224 is a deficient number, since it is larger than the sum of its proper divisors (121181504410).

123105020224 is an equidigital number, since it uses as much as digits as its factorization.

123105020224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923515953 (or 1923515943 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 123105020224 its reverse (422020501321), we get a palindrome (545125521545).

The spelling of 123105020224 in words is "one hundred twenty-three billion, one hundred five million, twenty thousand, two hundred twenty-four".