401312003 has 4 divisors (see below), whose sum is σ = 401353800. Its totient is φ = 401270208.

The previous prime is 401311993. The next prime is 401312017. The reversal of 401312003 is 300213104.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 401312003 - 2⁴ = 401311987 is a prime.

It is a super-2 number, since 2×401312003² = 322102647503744018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401312033) 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, 1523 + ... + 28371.

It is an arithmetic number, because the mean of its divisors is an integer number (100338450).

Almost surely, 2^401312003 is an apocalyptic number.

401312003 is a deficient number, since it is larger than the sum of its proper divisors (41797).

401312003 is a wasteful number, since it uses less digits than its factorization.

401312003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41796.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 401312003 is about 20032.7732228965. The cubic root of 401312003 is about 737.6109972933.

Adding to 401312003 its reverse (300213104), we get a palindrome (701525107).

The spelling of 401312003 in words is "four hundred one million, three hundred twelve thousand, three".