405113218131 has 8 divisors (see below), whose sum is σ = 551643531264. Its totient is φ = 264329191880.

The previous prime is 405113218127. The next prime is 405113218157. The reversal of 405113218131 is 131812311504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 405113218131 - 2² = 405113218127 is a prime.

It is a super-2 number, since 2×405113218131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (405113218031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436571555 + ... + 1436571836.

It is an arithmetic number, because the mean of its divisors is an integer number (68955441408).

Almost surely, 2^405113218131 is an apocalyptic number.

405113218131 is a deficient number, since it is larger than the sum of its proper divisors (146530313133).

405113218131 is a wasteful number, since it uses less digits than its factorization.

405113218131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873143441.

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 405113218131 its reverse (131812311504), we get a palindrome (536925529635).

The spelling of 405113218131 in words is "four hundred five billion, one hundred thirteen million, two hundred eighteen thousand, one hundred thirty-one".