401231003 has 4 divisors (see below), whose sum is σ = 402290040. Its totient is φ = 400171968.

The previous prime is 401230993. The next prime is 401231023. The reversal of 401231003 is 300132104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401231003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401231023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528950 + ... + 529707.

It is an arithmetic number, because the mean of its divisors is an integer number (100572510).

Almost surely, 2^401231003 is an apocalyptic number.

401231003 is a deficient number, since it is larger than the sum of its proper divisors (1059037).

401231003 is a wasteful number, since it uses less digits than its factorization.

401231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059036.

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

The square root of 401231003 is about 20030.7514337331. The cubic root of 401231003 is about 737.5613679854.

Adding to 401231003 its reverse (300132104), we get a palindrome (701363107).

The spelling of 401231003 in words is "four hundred one million, two hundred thirty-one thousand, three".