203204111001 has 16 divisors (see below), whose sum is σ = 272545236864. Its totient is φ = 134666428544.

The previous prime is 203204110999. The next prime is 203204111021. The reversal of 203204111001 is 100111402302.

It is a cyclic number.

It is not a de Polignac number, because 203204111001 - 2¹ = 203204110999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203204111021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4031980 + ... + 4082066.

It is an arithmetic number, because the mean of its divisors is an integer number (17034077304).

Almost surely, 2^203204111001 is an apocalyptic number.

It is an amenable number.

203204111001 is a deficient number, since it is larger than the sum of its proper divisors (69341125863).

203204111001 is a wasteful number, since it uses less digits than its factorization.

203204111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58080.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 203204111001 its reverse (100111402302), we get a palindrome (303315513303).

The spelling of 203204111001 in words is "two hundred three billion, two hundred four million, one hundred eleven thousand, one".