123041042225 has 6 divisors (see below), whose sum is σ = 152570892390. Its totient is φ = 98432833760.

The previous prime is 123041042203. The next prime is 123041042227. The reversal of 123041042225 is 522240140321.

It can be written as a sum of positive squares in 3 ways, for example, as 2373735841 + 120667306384 = 48721^2 + 347372^2 .

It is not a de Polignac number, because 123041042225 - 2⁶ = 123041042161 is a prime.

It is a super-3 number, since 3×123041042225³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123041042194 and 123041042203.

It is not an unprimeable number, because it can be changed into a prime (123041042227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2460820820 + ... + 2460820869.

It is an arithmetic number, because the mean of its divisors is an integer number (25428482065).

Almost surely, 2^123041042225 is an apocalyptic number.

It is an amenable number.

123041042225 is a deficient number, since it is larger than the sum of its proper divisors (29529850165).

123041042225 is an equidigital number, since it uses as much as digits as its factorization.

123041042225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921641699 (or 4921641694 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 123041042225 its reverse (522240140321), we get a palindrome (645281182546).

The spelling of 123041042225 in words is "one hundred twenty-three billion, forty-one million, forty-two thousand, two hundred twenty-five".