203224342121 has 4 divisors (see below), whose sum is σ = 203316593232. Its totient is φ = 203132091012.

The previous prime is 203224342093. The next prime is 203224342169. The reversal of 203224342121 is 121243422302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203224342121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203224342021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46122251 + ... + 46126656.

It is an arithmetic number, because the mean of its divisors is an integer number (50829148308).

Almost surely, 2^203224342121 is an apocalyptic number.

It is an amenable number.

203224342121 is a deficient number, since it is larger than the sum of its proper divisors (92251111).

203224342121 is an equidigital number, since it uses as much as digits as its factorization.

203224342121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92251110.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 203224342121 its reverse (121243422302), we get a palindrome (324467764423).

The spelling of 203224342121 in words is "two hundred three billion, two hundred twenty-four million, three hundred forty-two thousand, one hundred twenty-one".