203011022110121 has 8 divisors (see below), whose sum is σ = 203591022203520. Its totient is φ = 202431848818672.

The previous prime is 203011022110073. The next prime is 203011022110151. The reversal of 203011022110121 is 121011220110302.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203011022110121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203011022110121.

It is not an unprimeable number, because it can be changed into a prime (203011022110151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206208710 + ... + 207190863.

It is an arithmetic number, because the mean of its divisors is an integer number (25448877775440).

Almost surely, 2^{203011022110121} is an apocalyptic number.

It is an amenable number.

203011022110121 is a deficient number, since it is larger than the sum of its proper divisors (580000093399).

203011022110121 is an equidigital number, since it uses as much as digits as its factorization.

203011022110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413400975.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 203011022110121 its reverse (121011220110302), we get a palindrome (324022242220423).

The spelling of 203011022110121 in words is "two hundred three trillion, eleven billion, twenty-two million, one hundred ten thousand, one hundred twenty-one".