401323 has 4 divisors (see below), whose sum is σ = 432208.
Its totient is φ = 370440.
The previous prime is 401321. The next prime is 401329. The reversal of 401323 is 323104.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 401323 - 21 = 401321 is a prime.
It is a super-2 number, since 2×4013232 = 322120300658, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 30871 = 401323 / (4 + 0 + 1 + 3 + 2 + 3).
It is the 634-th Hogben number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (401321) by changing a digit.
It is a nontrivial repunit in base 633.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15423 + ... + 15448.
It is an arithmetic number, because the mean of its divisors is an integer number (108052).
2401323 is an apocalyptic number.
401323 is a deficient number, since it is larger than the sum of its proper divisors (30885).
401323 is a wasteful number, since it uses less digits than its factorization.
401323 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30884.
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 401323 is about 633.5005919492.
The cubic root of 401323 is about 73.7617734723.
Adding to 401323 its reverse (323104), we get a palindrome (724427).
The spelling of 401323 in words is "four hundred one thousand, three hundred twenty-three", and thus it is an iban number.