404240133131 has 2 divisors, whose sum is σ = 404240133132. Its totient is φ = 404240133130.

The previous prime is 404240133127. The next prime is 404240133151. The reversal of 404240133131 is 131331042404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404240133131 - 2² = 404240133127 is a prime.

It is a super-2 number, since 2×404240133131² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 404240133131.

It is not a weakly prime, because it can be changed into another prime (404240133151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202120066565 + 202120066566.

It is an arithmetic number, because the mean of its divisors is an integer number (202120066566).

Almost surely, 2^404240133131 is an apocalyptic number.

404240133131 is a deficient number, since it is larger than the sum of its proper divisors (1).

404240133131 is an equidigital number, since it uses as much as digits as its factorization.

404240133131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 404240133131 its reverse (131331042404), we get a palindrome (535571175535).

The spelling of 404240133131 in words is "four hundred four billion, two hundred forty million, one hundred thirty-three thousand, one hundred thirty-one".