123825070613 has 4 divisors (see below), whose sum is σ = 123988644780. Its totient is φ = 123661496448.

The previous prime is 123825070597. The next prime is 123825070619. The reversal of 123825070613 is 316070528321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 90265395364 + 33559675249 = 300442^2 + 183193^2 .

It is a cyclic number.

It is not a de Polignac number, because 123825070613 - 2⁴ = 123825070597 is a prime.

It is a super-2 number, since 2×123825070613² (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 (123825070619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81785948 + ... + 81787461.

It is an arithmetic number, because the mean of its divisors is an integer number (30997161195).

Almost surely, 2^123825070613 is an apocalyptic number.

It is an amenable number.

123825070613 is a deficient number, since it is larger than the sum of its proper divisors (163574167).

123825070613 is an equidigital number, since it uses as much as digits as its factorization.

123825070613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163574166.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 123825070613 its reverse (316070528321), we get a palindrome (439895598934).

The spelling of 123825070613 in words is "one hundred twenty-three billion, eight hundred twenty-five million, seventy thousand, six hundred thirteen".