203832040121 has 2 divisors, whose sum is σ = 203832040122. Its totient is φ = 203832040120.

The previous prime is 203832040067. The next prime is 203832040133. The reversal of 203832040121 is 121040238302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201277849600 + 2554190521 = 448640^2 + 50539^2 .

It is a cyclic number.

It is not a de Polignac number, because 203832040121 - 2⁶ = 203832040057 is a prime.

It is not a weakly prime, because it can be changed into another prime (203832040921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101916020060 + 101916020061.

It is an arithmetic number, because the mean of its divisors is an integer number (101916020061).

Almost surely, 2^203832040121 is an apocalyptic number.

It is an amenable number.

203832040121 is a deficient number, since it is larger than the sum of its proper divisors (1).

203832040121 is an equidigital number, since it uses as much as digits as its factorization.

203832040121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 203832040121 its reverse (121040238302), we get a palindrome (324872278423).

The spelling of 203832040121 in words is "two hundred three billion, eight hundred thirty-two million, forty thousand, one hundred twenty-one".