12511203055 has 32 divisors (see below), whose sum is σ = 17041570560. Its totient is φ = 8752074240.

The previous prime is 12511203041. The next prime is 12511203083. The reversal of 12511203055 is 55030211521.

It is not a de Polignac number, because 12511203055 - 2¹⁹ = 12510678767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37290 + ... + 162520.

It is an arithmetic number, because the mean of its divisors is an integer number (532549080).

Almost surely, 2^12511203055 is an apocalyptic number.

12511203055 is a deficient number, since it is larger than the sum of its proper divisors (4530367505).

12511203055 is a wasteful number, since it uses less digits than its factorization.

12511203055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125331.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 12511203055 its reverse (55030211521), we get a palindrome (67541414576).

The spelling of 12511203055 in words is "twelve billion, five hundred eleven million, two hundred three thousand, fifty-five".