403212103 has 16 divisors (see below), whose sum is σ = 509137920. Its totient is φ = 311135616.

The previous prime is 403212083. The next prime is 403212113. The reversal of 403212103 is 301212304.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 403212103 - 2⁹ = 403211591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403212113) 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 15 ways as a sum of consecutive naturals, for example, 70923 + ... + 76396.

It is an arithmetic number, because the mean of its divisors is an integer number (31821120).

Almost surely, 2^403212103 is an apocalyptic number.

403212103 is a deficient number, since it is larger than the sum of its proper divisors (105925817).

403212103 is a wasteful number, since it uses less digits than its factorization.

403212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147366.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 403212103 is about 20080.1420064700. The cubic root of 403212103 is about 738.7732920394.

Adding to 403212103 its reverse (301212304), we get a palindrome (704424407).

It can be divided in two parts, 40321 and 2103, that added together give a palindrome (42424).

The spelling of 403212103 in words is "four hundred three million, two hundred twelve thousand, one hundred three".