123130304525 has 12 divisors (see below), whose sum is σ = 152788917312. Its totient is φ = 98434992240.

The previous prime is 123130304509. The next prime is 123130304527. The reversal of 123130304525 is 525403031321.

It is a happy number.

It is not a de Polignac number, because 123130304525 - 2⁴ = 123130304509 is a prime.

It is a super-2 number, since 2×123130304525² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123130304527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1694999 + ... + 1766148.

It is an arithmetic number, because the mean of its divisors is an integer number (12732409776).

Almost surely, 2^123130304525 is an apocalyptic number.

It is an amenable number.

123130304525 is a deficient number, since it is larger than the sum of its proper divisors (29658612787).

123130304525 is a wasteful number, since it uses less digits than its factorization.

123130304525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462580 (or 3462575 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 123130304525 its reverse (525403031321), we get a palindrome (648533335846).

The spelling of 123130304525 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred four thousand, five hundred twenty-five".