401323423 has 4 divisors (see below), whose sum is σ = 412170040. Its totient is φ = 390476808.

The previous prime is 401323409. The next prime is 401323463. The reversal of 401323423 is 324323104.

It is a happy number.

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 401323423 - 2¹³ = 401315231 is a prime.

It is a super-2 number, since 2×401323423² = 322120979696873858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401323394 and 401323403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401323463) 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, 5423253 + ... + 5423326.

It is an arithmetic number, because the mean of its divisors is an integer number (103042510).

Almost surely, 2^401323423 is an apocalyptic number.

401323423 is a deficient number, since it is larger than the sum of its proper divisors (10846617).

401323423 is a wasteful number, since it uses less digits than its factorization.

401323423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10846616.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 401323423 is about 20033.0582537964. The cubic root of 401323423 is about 737.6179938759.

Adding to 401323423 its reverse (324323104), we get a palindrome (725646527).

The spelling of 401323423 in words is "four hundred one million, three hundred twenty-three thousand, four hundred twenty-three".