401000505323 has 24 divisors (see below), whose sum is σ = 473662533456. Its totient is φ = 337980994560.

The previous prime is 401000505263. The next prime is 401000505329. The reversal of 401000505323 is 323505000104.

It is not a de Polignac number, because 401000505323 - 2³⁰ = 399926763499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (401000505329) 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, 1316990 + ... + 1592627.

It is an arithmetic number, because the mean of its divisors is an integer number (19735938894).

Almost surely, 2^401000505323 is an apocalyptic number.

401000505323 is a deficient number, since it is larger than the sum of its proper divisors (72662028133).

401000505323 is a wasteful number, since it uses less digits than its factorization.

401000505323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909723 (or 2909712 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 401000505323 its reverse (323505000104), we get a palindrome (724505505427).

The spelling of 401000505323 in words is "four hundred one billion, five hundred five thousand, three hundred twenty-three".