2113144404442 has 32 divisors (see below), whose sum is σ = 3365071309440. Its totient is φ = 991787005440.

The previous prime is 2113144404419. The next prime is 2113144404443. The reversal of 2113144404442 is 2444044413112.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 2113144404398 and 2113144404407.

It is not an unprimeable number, because it can be changed into a prime (2113144404443) 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, 20264934 + ... + 20368942.

It is an arithmetic number, because the mean of its divisors is an integer number (105158478420).

Almost surely, 2^{2113144404442} is an apocalyptic number.

2113144404442 is a deficient number, since it is larger than the sum of its proper divisors (1251926904998).

2113144404442 is a wasteful number, since it uses less digits than its factorization.

2113144404442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105606.

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 2113144404442 its reverse (2444044413112), we get a palindrome (4557188817554).

The spelling of 2113144404442 in words is "two trillion, one hundred thirteen billion, one hundred forty-four million, four hundred four thousand, four hundred forty-two".