405211202542323 has 24 divisors (see below), whose sum is σ = 609036829547328. Its totient is φ = 259404575519232.

The previous prime is 405211202542301. The next prime is 405211202542351. The reversal of 405211202542323 is 323245202112504.

405211202542323 is a `hidden beast` number, since 4 + 0 + 5 + 2 + 1 + 1 + 202 + 5 + 423 + 23 = 666.

It is not a de Polignac number, because 405211202542323 - 2¹² = 405211202538227 is a prime.

It is a super-2 number, since 2×405211202542323² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (405211202042323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9037204990 + ... + 9037249827.

It is an arithmetic number, because the mean of its divisors is an integer number (25376534564472).

Almost surely, 2^{405211202542323} is an apocalyptic number.

405211202542323 is a deficient number, since it is larger than the sum of its proper divisors (203825627005005).

405211202542323 is a wasteful number, since it uses less digits than its factorization.

405211202542323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18074454923 (or 18074454920 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 405211202542323 its reverse (323245202112504), we get a palindrome (728456404654827).

The spelling of 405211202542323 in words is "four hundred five trillion, two hundred eleven billion, two hundred two million, five hundred forty-two thousand, three hundred twenty-three".