403120313 has 4 divisors (see below), whose sum is σ = 412495248. Its totient is φ = 393745380.

The previous prime is 403120309. The next prime is 403120343. The reversal of 403120313 is 313021304.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403120313 - 2² = 403120309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 403120291 and 403120300.

It is not an unprimeable number, because it can be changed into a prime (403120343) 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, 4687403 + ... + 4687488.

It is an arithmetic number, because the mean of its divisors is an integer number (103123812).

Almost surely, 2^403120313 is an apocalyptic number.

403120313 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

403120313 is a deficient number, since it is larger than the sum of its proper divisors (9374935).

403120313 is an equidigital number, since it uses as much as digits as its factorization.

403120313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374934.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 403120313 is about 20077.8562849723. The cubic root of 403120313 is about 738.7172279594.

Adding to 403120313 its reverse (313021304), we get a palindrome (716141617).

Subtracting from 403120313 its reverse (313021304), we obtain a palindrome (90099009).

The spelling of 403120313 in words is "four hundred three million, one hundred twenty thousand, three hundred thirteen".