201342403 has 4 divisors (see below), whose sum is σ = 201435840. Its totient is φ = 201248968.

The previous prime is 201342353. The next prime is 201342433. The reversal of 201342403 is 304243102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201342403 - 2¹⁷ = 201211331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201342433) 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, 43408 + ... + 47821.

It is an arithmetic number, because the mean of its divisors is an integer number (50358960).

Almost surely, 2^201342403 is an apocalyptic number.

201342403 is a deficient number, since it is larger than the sum of its proper divisors (93437).

201342403 is an equidigital number, since it uses as much as digits as its factorization.

201342403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93436.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 201342403 is about 14189.5173631805. The cubic root of 201342403 is about 586.1090345633.

Adding to 201342403 its reverse (304243102), we get a palindrome (505585505).

The spelling of 201342403 in words is "two hundred one million, three hundred forty-two thousand, four hundred three".