320011403 has 8 divisors (see below), whose sum is σ = 326382048. Its totient is φ = 313653184.

The previous prime is 320011399. The next prime is 320011411. The reversal of 320011403 is 304110023.

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 320011403 - 2² = 320011399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320011453) 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, 62351 + ... + 67287.

It is an arithmetic number, because the mean of its divisors is an integer number (40797756).

Almost surely, 2^320011403 is an apocalyptic number.

320011403 is a deficient number, since it is larger than the sum of its proper divisors (6370645).

320011403 is a wasteful number, since it uses less digits than its factorization.

320011403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6213.

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

The square root of 320011403 is about 17888.8625406983. The cubic root of 320011403 is about 683.9985030974.

Adding to 320011403 its reverse (304110023), we get a palindrome (624121426).

The spelling of 320011403 in words is "three hundred twenty million, eleven thousand, four hundred three".