12417551111 has 16 divisors (see below), whose sum is σ = 15144615936. Its totient is φ = 9938630016.

The previous prime is 12417551017. The next prime is 12417551131. The reversal of 12417551111 is 11115571421.

It is not a de Polignac number, because 12417551111 - 2³⁰ = 11343809287 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 (12417551131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395711 + ... + 425936.

It is an arithmetic number, because the mean of its divisors is an integer number (946538496).

Almost surely, 2^12417551111 is an apocalyptic number.

12417551111 is a deficient number, since it is larger than the sum of its proper divisors (2727064825).

12417551111 is a wasteful number, since it uses less digits than its factorization.

12417551111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821798.

The product of its digits is 1400, while the sum is 29.

The spelling of 12417551111 in words is "twelve billion, four hundred seventeen million, five hundred fifty-one thousand, one hundred eleven".