400302220000323 has 4 divisors (see below), whose sum is σ = 533736293333768. Its totient is φ = 266868146666880.

The previous prime is 400302220000283. The next prime is 400302220000427. The reversal of 400302220000323 is 323000022203004.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 400302220000323 - 2⁹ = 400302219999811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400302220000323.

It is not an unprimeable number, because it can be changed into a prime (400302220000223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66717036666718 + ... + 66717036666723.

It is an arithmetic number, because the mean of its divisors is an integer number (133434073333442).

Almost surely, 2^{400302220000323} is an apocalyptic number.

400302220000323 is a deficient number, since it is larger than the sum of its proper divisors (133434073333445).

400302220000323 is a wasteful number, since it uses less digits than its factorization.

400302220000323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133434073333444.

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 400302220000323 its reverse (323000022203004), we get a palindrome (723302242203327).

The spelling of 400302220000323 in words is "four hundred trillion, three hundred two billion, two hundred twenty million, three hundred twenty-three", and thus it is an aban number.