405223322503 has 8 divisors (see below), whose sum is σ = 405528780800. Its totient is φ = 404917953048.

The previous prime is 405223322489. The next prime is 405223322509. The reversal of 405223322503 is 305223322504.

It is a happy number.

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 405223322503 - 2²⁹ = 404686451591 is a prime.

It is a super-2 number, since 2×405223322503² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405223322509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11139178 + ... + 11175496.

It is an arithmetic number, because the mean of its divisors is an integer number (50691097600).

Almost surely, 2^405223322503 is an apocalyptic number.

405223322503 is a deficient number, since it is larger than the sum of its proper divisors (305458297).

405223322503 is a wasteful number, since it uses less digits than its factorization.

405223322503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44421.

The product of its (nonzero) digits is 43200, while the sum is 31.

Subtracting from 405223322503 its reverse (305223322504), we obtain a palindrome (99999999999).

The spelling of 405223322503 in words is "four hundred five billion, two hundred twenty-three million, three hundred twenty-two thousand, five hundred three".