401123 has 4 divisors (see below), whose sum is σ = 405720. Its totient is φ = 396528.

The previous prime is 401119. The next prime is 401161. The reversal of 401123 is 321104.

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 401123 - 2² = 401119 is a prime.

It is a super-2 number, since 2×401123² = 321799322258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165 + ... + 2342.

It is an arithmetic number, because the mean of its divisors is an integer number (101430).

2⁴⁰¹¹²³ is an apocalyptic number.

401123 is a deficient number, since it is larger than the sum of its proper divisors (4597).

401123 is an equidigital number, since it uses as much as digits as its factorization.

401123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 401123 is about 633.3427192287. The cubic root of 401123 is about 73.7495183345.

Adding to 401123 its reverse (321104), we get a palindrome (722227).

The spelling of 401123 in words is "four hundred one thousand, one hundred twenty-three", and thus it is an iban number.