20310255273 has 16 divisors (see below), whose sum is σ = 33762502656. Its totient is φ = 10550781840.

The previous prime is 20310255269. The next prime is 20310255307. The reversal of 20310255273 is 37255201302.

It is a happy number.

It is not a de Polignac number, because 20310255273 - 2² = 20310255269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20310255273.

It is not an unprimeable number, because it can be changed into a prime (20310255373) 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 15 ways as a sum of consecutive naturals, for example, 43961361 + ... + 43961822.

It is an arithmetic number, because the mean of its divisors is an integer number (2110156416).

Almost surely, 2^20310255273 is an apocalyptic number.

It is an amenable number.

20310255273 is a deficient number, since it is larger than the sum of its proper divisors (13452247383).

20310255273 is a wasteful number, since it uses less digits than its factorization.

20310255273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87923204.

The product of its (nonzero) digits is 12600, while the sum is 30.

Adding to 20310255273 its reverse (37255201302), we get a palindrome (57565456575).

The spelling of 20310255273 in words is "twenty billion, three hundred ten million, two hundred fifty-five thousand, two hundred seventy-three".