404344013121143 has 4 divisors (see below), whose sum is σ = 404344054811928. Its totient is φ = 404343971430360.

The previous prime is 404344013121131. The next prime is 404344013121149. The reversal of 404344013121143 is 341121310443404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 404344013121143 - 2²² = 404344008926839 is a prime.

It is a super-2 number, since 2×404344013121143² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404344013121149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2181380 + ... + 28520982.

It is an arithmetic number, because the mean of its divisors is an integer number (101086013702982).

Almost surely, 2^{404344013121143} is an apocalyptic number.

404344013121143 is a deficient number, since it is larger than the sum of its proper divisors (41690785).

404344013121143 is a wasteful number, since it uses less digits than its factorization.

404344013121143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41690784.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 404344013121143 its reverse (341121310443404), we get a palindrome (745465323564547).

The spelling of 404344013121143 in words is "four hundred four trillion, three hundred forty-four billion, thirteen million, one hundred twenty-one thousand, one hundred forty-three".