204245125103 has 2 divisors, whose sum is σ = 204245125104. Its totient is φ = 204245125102.

The previous prime is 204245125013. The next prime is 204245125127. The reversal of 204245125103 is 301521542402.

Together with previous prime (204245125013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204245125103 - 2¹⁴ = 204245108719 is a prime.

It is a super-2 number, since 2×204245125103² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204245125003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102122562551 + 102122562552.

It is an arithmetic number, because the mean of its divisors is an integer number (102122562552).

Almost surely, 2^204245125103 is an apocalyptic number.

204245125103 is a deficient number, since it is larger than the sum of its proper divisors (1).

204245125103 is an equidigital number, since it uses as much as digits as its factorization.

204245125103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 204245125103 its reverse (301521542402), we get a palindrome (505766667505).

The spelling of 204245125103 in words is "two hundred four billion, two hundred forty-five million, one hundred twenty-five thousand, one hundred three".