400321322103 has 16 divisors (see below), whose sum is σ = 534822294240. Its totient is φ = 266351145984.

The previous prime is 400321322077. The next prime is 400321322119. The reversal of 400321322103 is 301223123004.

It is not a de Polignac number, because 400321322103 - 2¹⁷ = 400321191031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400321322103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400321322123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3001075 + ... + 3131627.

It is an arithmetic number, because the mean of its divisors is an integer number (33426393390).

Almost surely, 2^400321322103 is an apocalyptic number.

400321322103 is a deficient number, since it is larger than the sum of its proper divisors (134500972137).

400321322103 is a wasteful number, since it uses less digits than its factorization.

400321322103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132578.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 400321322103 its reverse (301223123004), we get a palindrome (701544445107).

The spelling of 400321322103 in words is "four hundred billion, three hundred twenty-one million, three hundred twenty-two thousand, one hundred three".