203304120101 has 4 divisors (see below), whose sum is σ = 203443466400. Its totient is φ = 203164773804.

The previous prime is 203304120077. The next prime is 203304120137. The reversal of 203304120101 is 101021403302.

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-203304120101 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 203304120101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203304120161) 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, 69670961 + ... + 69673878.

It is an arithmetic number, because the mean of its divisors is an integer number (50860866600).

Almost surely, 2^203304120101 is an apocalyptic number.

It is an amenable number.

203304120101 is a deficient number, since it is larger than the sum of its proper divisors (139346299).

203304120101 is a wasteful number, since it uses less digits than its factorization.

203304120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139346298.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 203304120101 its reverse (101021403302), we get a palindrome (304325523403).

The spelling of 203304120101 in words is "two hundred three billion, three hundred four million, one hundred twenty thousand, one hundred one".