13111440021054 has 48 divisors (see below), whose sum is σ = 28591132715808. Its totient is φ = 4342328243136.

The previous prime is 13111440020993. The next prime is 13111440021061. The reversal of 13111440021054 is 45012004411131.

It is a happy number.

13111440021054 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 1 + 440 + 0 + 210 + 5 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40638279 + ... + 40959645.

It is an arithmetic number, because the mean of its divisors is an integer number (595648598246).

Almost surely, 2^{13111440021054} is an apocalyptic number.

13111440021054 is an abundant number, since it is smaller than the sum of its proper divisors (15479692694754).

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

13111440021054 is a wasteful number, since it uses less digits than its factorization.

13111440021054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335969 (or 335966 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 13111440021054 its reverse (45012004411131), we get a palindrome (58123444432185).

The spelling of 13111440021054 in words is "thirteen trillion, one hundred eleven billion, four hundred forty million, twenty-one thousand, fifty-four".