404242113113 has 2 divisors, whose sum is σ = 404242113114. Its totient is φ = 404242113112.

The previous prime is 404242113071. The next prime is 404242113131. The reversal of 404242113113 is 311311242404.

Together with next prime (404242113131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344719288384 + 59522824729 = 587128^2 + 243973^2 .

It is a cyclic number.

It is not a de Polignac number, because 404242113113 - 2³⁴ = 387062243929 is a prime.

It is not a weakly prime, because it can be changed into another prime (404242113133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202121056556 + 202121056557.

It is an arithmetic number, because the mean of its divisors is an integer number (202121056557).

Almost surely, 2^404242113113 is an apocalyptic number.

It is an amenable number.

404242113113 is a deficient number, since it is larger than the sum of its proper divisors (1).

404242113113 is an equidigital number, since it uses as much as digits as its factorization.

404242113113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 404242113113 its reverse (311311242404), we get a palindrome (715553355517).

The spelling of 404242113113 in words is "four hundred four billion, two hundred forty-two million, one hundred thirteen thousand, one hundred thirteen".