320013403 has 8 divisors (see below), whose sum is σ = 331600896. Its totient is φ = 308505000.

The previous prime is 320013383. The next prime is 320013469. The reversal of 320013403 is 304310023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320013403 - 2¹³ = 320005211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320010403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11473 + ... + 27778.

It is an arithmetic number, because the mean of its divisors is an integer number (41450112).

Almost surely, 2^320013403 is an apocalyptic number.

320013403 is a deficient number, since it is larger than the sum of its proper divisors (11587493).

320013403 is a wasteful number, since it uses less digits than its factorization.

320013403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39545.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 320013403 is about 17888.9184413144. The cubic root of 320013403 is about 683.9999280405. Note that the first 4 decimals are identical.

Adding to 320013403 its reverse (304310023), we get a palindrome (624323426).

The spelling of 320013403 in words is "three hundred twenty million, thirteen thousand, four hundred three".