12550154111 has 16 divisors (see below), whose sum is σ = 14343687168. Its totient is φ = 10876377600.

The previous prime is 12550154081. The next prime is 12550154129. The reversal of 12550154111 is 11145105521.

It is a happy number.

It is not a de Polignac number, because 12550154111 - 2⁶ = 12550154047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550150111) 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, 251810 + ... + 297503.

It is an arithmetic number, because the mean of its divisors is an integer number (896480448).

Almost surely, 2^12550154111 is an apocalyptic number.

12550154111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12550154111 is a deficient number, since it is larger than the sum of its proper divisors (1793533057).

12550154111 is a wasteful number, since it uses less digits than its factorization.

12550154111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549422.

The product of its (nonzero) digits is 1000, while the sum is 26.

Adding to 12550154111 its reverse (11145105521), we get a palindrome (23695259632).

It can be divided in two parts, 12550 and 154111, that added together give a palindrome (166661).

The spelling of 12550154111 in words is "twelve billion, five hundred fifty million, one hundred fifty-four thousand, one hundred eleven".