400321321322 has 8 divisors (see below), whose sum is σ = 646672903716. Its totient is φ = 184763686752.

The previous prime is 400321321261. The next prime is 400321321349. The reversal of 400321321322 is 223123123004.

It can be written as a sum of positive squares in 2 ways, for example, as 343981077001 + 56340244321 = 586499^2 + 237361^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7698486923 + ... + 7698486974.

Almost surely, 2^400321321322 is an apocalyptic number.

400321321322 is a deficient number, since it is larger than the sum of its proper divisors (246351582394).

400321321322 is a wasteful number, since it uses less digits than its factorization.

400321321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15396973912.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 400321321322 its reverse (223123123004), we get a palindrome (623444444326).

The spelling of 400321321322 in words is "four hundred billion, three hundred twenty-one million, three hundred twenty-one thousand, three hundred twenty-two".