405412042331 has 4 divisors (see below), whose sum is σ = 405577721952. Its totient is φ = 405246362712.

The previous prime is 405412042319. The next prime is 405412042337. The reversal of 405412042331 is 133240214504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 405412042331 - 2⁶ = 405412042267 is a prime.

It is a super-2 number, since 2×405412042331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405412042294 and 405412042303.

It is not an unprimeable number, because it can be changed into a prime (405412042337) 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, 82836140 + ... + 82841033.

It is an arithmetic number, because the mean of its divisors is an integer number (101394430488).

Almost surely, 2^405412042331 is an apocalyptic number.

405412042331 is a deficient number, since it is larger than the sum of its proper divisors (165679621).

405412042331 is a wasteful number, since it uses less digits than its factorization.

405412042331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165679620.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 405412042331 its reverse (133240214504), we get a palindrome (538652256835).

The spelling of 405412042331 in words is "four hundred five billion, four hundred twelve million, forty-two thousand, three hundred thirty-one".