203423421201 has 32 divisors (see below), whose sum is σ = 364170605568. Its totient is φ = 97545695040.

The previous prime is 203423421193. The next prime is 203423421209. The reversal of 203423421201 is 102124324302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (203423421193) and next prime (203423421209).

It is not a de Polignac number, because 203423421201 - 2³ = 203423421193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (203423421209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33867031 + ... + 33873036.

It is an arithmetic number, because the mean of its divisors is an integer number (11380331424).

Almost surely, 2^203423421201 is an apocalyptic number.

203423421201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

203423421201 is a deficient number, since it is larger than the sum of its proper divisors (160747184367).

203423421201 is a wasteful number, since it uses less digits than its factorization.

203423421201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67740101.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203423421201 its reverse (102124324302), we get a palindrome (305547745503).

The spelling of 203423421201 in words is "two hundred three billion, four hundred twenty-three million, four hundred twenty-one thousand, two hundred one".