20123325255 has 128 divisors (see below), whose sum is σ = 38957137920. Its totient is φ = 8749762560.

The previous prime is 20123325253. The next prime is 20123325259. The reversal of 20123325255 is 55252332102.

It is not a de Polignac number, because 20123325255 - 2¹ = 20123325253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123325253) 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 127 ways as a sum of consecutive naturals, for example, 24450774 + ... + 24451596.

It is an arithmetic number, because the mean of its divisors is an integer number (304352640).

Almost surely, 2^20123325255 is an apocalyptic number.

20123325255 is a deficient number, since it is larger than the sum of its proper divisors (18833812665).

20123325255 is a wasteful number, since it uses less digits than its factorization.

20123325255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 20123325255 its reverse (55252332102), we get a palindrome (75375657357).

The spelling of 20123325255 in words is "twenty billion, one hundred twenty-three million, three hundred twenty-five thousand, two hundred fifty-five".