203311312303121 has 8 divisors (see below), whose sum is σ = 221838314651904. Its totient is φ = 184791669250320.

The previous prime is 203311312303111. The next prime is 203311312303133. The reversal of 203311312303121 is 121303213113302.

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

It is not a de Polignac number, because 203311312303121 - 2²⁶ = 203311245194257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203311312303111) 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, 1839766226 + ... + 1839876731.

It is an arithmetic number, because the mean of its divisors is an integer number (27729789331488).

Almost surely, 2^{203311312303121} is an apocalyptic number.

It is an amenable number.

203311312303121 is a deficient number, since it is larger than the sum of its proper divisors (18527002348783).

203311312303121 is a wasteful number, since it uses less digits than its factorization.

203311312303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679647991.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 203311312303121 its reverse (121303213113302), we get a palindrome (324614525416423).

The spelling of 203311312303121 in words is "two hundred three trillion, three hundred eleven billion, three hundred twelve million, three hundred three thousand, one hundred twenty-one".