203040403101 has 12 divisors (see below), whose sum is σ = 293522379228. Its totient is φ = 135248670144.

The previous prime is 203040403079. The next prime is 203040403141. The reversal of 203040403101 is 101304040302.

It can be written as a sum of positive squares in 2 ways, for example, as 68094380601 + 134946022500 = 260949^2 + 367350^2 .

It is not a de Polignac number, because 203040403101 - 2¹⁰ = 203040402077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203040403141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9288360 + ... + 9310193.

It is an arithmetic number, because the mean of its divisors is an integer number (24460198269).

Almost surely, 2^203040403101 is an apocalyptic number.

It is an amenable number.

203040403101 is a deficient number, since it is larger than the sum of its proper divisors (90481976127).

203040403101 is a wasteful number, since it uses less digits than its factorization.

203040403101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18599772 (or 18599769 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 203040403101 its reverse (101304040302), we get a palindrome (304344443403).

The spelling of 203040403101 in words is "two hundred three billion, forty million, four hundred three thousand, one hundred one".