123465420225 has 36 divisors (see below), whose sum is σ = 252731758656. Its totient is φ = 56441334240.

The previous prime is 123465420161. The next prime is 123465420269. The reversal of 123465420225 is 522024564321.

123465420225 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 6 + 5 + 420 + 225 = 666.

It is not a de Polignac number, because 123465420225 - 2⁶ = 123465420161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123465420225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39193797 + ... + 39196946.

Almost surely, 2^123465420225 is an apocalyptic number.

123465420225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123465420225 is an abundant number, since it is smaller than the sum of its proper divisors (129266338431).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123465420225 is a wasteful number, since it uses less digits than its factorization.

123465420225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78390766 (or 78390758 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 123465420225 its reverse (522024564321), we get a palindrome (645489984546).

The spelling of 123465420225 in words is "one hundred twenty-three billion, four hundred sixty-five million, four hundred twenty thousand, two hundred twenty-five".