123310225 has 6 divisors (see below), whose sum is σ = 152904710. Its totient is φ = 98648160.

The previous prime is 123310223. The next prime is 123310241. The reversal of 123310225 is 522013321.

It can be written as a sum of positive squares in 3 ways, for example, as 698896 + 122611329 = 836^2 + 11073^2 .

It is not a de Polignac number, because 123310225 - 2¹ = 123310223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123310223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2466180 + ... + 2466229.

Almost surely, 2^123310225 is an apocalyptic number.

It is an amenable number.

123310225 is a deficient number, since it is larger than the sum of its proper divisors (29594485).

123310225 is an equidigital number, since it uses as much as digits as its factorization.

123310225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932419 (or 4932414 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 123310225 is about 11104.5137219061. The cubic root of 123310225 is about 497.7367374092.

Adding to 123310225 its reverse (522013321), we get a palindrome (645323546).

The spelling of 123310225 in words is "one hundred twenty-three million, three hundred ten thousand, two hundred twenty-five".