12111450054 has 64 divisors (see below), whose sum is σ = 26714852352. Its totient is φ = 3629991200.

The previous prime is 12111450053. The next prime is 12111450059. The reversal of 12111450054 is 45005411121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111450053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6686809 + ... + 6688619.

It is an arithmetic number, because the mean of its divisors is an integer number (417419568).

Almost surely, 2^12111450054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12111450054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13357426176).

12111450054 is an abundant number, since it is smaller than the sum of its proper divisors (14603402298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111450054 is a wasteful number, since it uses less digits than its factorization.

12111450054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 12111450054 its reverse (45005411121), we get a palindrome (57116861175).

The spelling of 12111450054 in words is "twelve billion, one hundred eleven million, four hundred fifty thousand, fifty-four".