404420012131 has 2 divisors, whose sum is σ = 404420012132. Its totient is φ = 404420012130.

The previous prime is 404420012093. The next prime is 404420012141. The reversal of 404420012131 is 131210024404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404420012131 is a prime.

It is a super-2 number, since 2×404420012131² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (404420012141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202210006065 + 202210006066.

It is an arithmetic number, because the mean of its divisors is an integer number (202210006066).

Almost surely, 2^404420012131 is an apocalyptic number.

404420012131 is a deficient number, since it is larger than the sum of its proper divisors (1).

404420012131 is an equidigital number, since it uses as much as digits as its factorization.

404420012131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 404420012131 its reverse (131210024404), we get a palindrome (535630036535).

The spelling of 404420012131 in words is "four hundred four billion, four hundred twenty million, twelve thousand, one hundred thirty-one".