203121004241 has 4 divisors (see below), whose sum is σ = 203143209984. Its totient is φ = 203098798500.

The previous prime is 203121004231. The next prime is 203121004267. The reversal of 203121004241 is 142400121302.

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 not a de Polignac number, because 203121004241 - 2²² = 203116809937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203121004231) 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, 11089145 + ... + 11107446.

It is an arithmetic number, because the mean of its divisors is an integer number (50785802496).

Almost surely, 2^203121004241 is an apocalyptic number.

It is an amenable number.

203121004241 is a deficient number, since it is larger than the sum of its proper divisors (22205743).

203121004241 is an equidigital number, since it uses as much as digits as its factorization.

203121004241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22205742.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 203121004241 its reverse (142400121302), we get a palindrome (345521125543).

The spelling of 203121004241 in words is "two hundred three billion, one hundred twenty-one million, four thousand, two hundred forty-one".