123126625553 has 8 divisors (see below), whose sum is σ = 123557003136. Its totient is φ = 122696600400.

The previous prime is 123126625513. The next prime is 123126625579. The reversal of 123126625553 is 355526621321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123126625553 - 2¹⁰ = 123126624529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123126625553.

It is not an unprimeable number, because it can be changed into a prime (123126625513) 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 7 ways as a sum of consecutive naturals, for example, 621800 + ... + 795542.

It is an arithmetic number, because the mean of its divisors is an integer number (15444625392).

Almost surely, 2^123126625553 is an apocalyptic number.

It is an amenable number.

123126625553 is a deficient number, since it is larger than the sum of its proper divisors (430377583).

123126625553 is a wasteful number, since it uses less digits than its factorization.

123126625553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176215.

The product of its digits is 324000, while the sum is 41.

The spelling of 123126625553 in words is "one hundred twenty-three billion, one hundred twenty-six million, six hundred twenty-five thousand, five hundred fifty-three".