123252525523 has 4 divisors (see below), whose sum is σ = 127502612640. Its totient is φ = 119002438408.

The previous prime is 123252525509. The next prime is 123252525533. The reversal of 123252525523 is 325525252321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123252525523 - 2⁵ = 123252525491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123252525533) 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 3 ways as a sum of consecutive naturals, for example, 2125043515 + ... + 2125043572.

It is an arithmetic number, because the mean of its divisors is an integer number (31875653160).

Almost surely, 2^123252525523 is an apocalyptic number.

123252525523 is a deficient number, since it is larger than the sum of its proper divisors (4250087117).

123252525523 is an equidigital number, since it uses as much as digits as its factorization.

123252525523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250087116.

The product of its digits is 180000, while the sum is 37.

Adding to 123252525523 its reverse (325525252321), we get a palindrome (448777777844).

The spelling of 123252525523 in words is "one hundred twenty-three billion, two hundred fifty-two million, five hundred twenty-five thousand, five hundred twenty-three".