2321403 has 8 divisors (see below), whose sum is σ = 3537408. Its totient is φ = 1326504.

The previous prime is 2321399. The next prime is 2321443. The reversal of 2321403 is 3041232.

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

It is not a de Polignac number, because 2321403 - 2² = 2321399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2321443) 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, 55251 + ... + 55292.

It is an arithmetic number, because the mean of its divisors is an integer number (442176).

2^2321403 is an apocalyptic number.

2321403 is a deficient number, since it is larger than the sum of its proper divisors (1216005).

2321403 is a wasteful number, since it uses less digits than its factorization.

2321403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110553.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2321403 is about 1523.6151088776. The cubic root of 2321403 is about 132.4087992314.

Adding to 2321403 its reverse (3041232), we get a palindrome (5362635).

The spelling of 2321403 in words is "two million, three hundred twenty-one thousand, four hundred three".