203104520045 has 12 divisors (see below), whose sum is σ = 283517330364. Its totient is φ = 139271670720.

The previous prime is 203104520011. The next prime is 203104520111. The reversal of 203104520045 is 540025401302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 86543049124 + 116561470921 = 294182^2 + 341411^2 .

It is not a de Polignac number, because 203104520045 - 2⁸ = 203104519789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203104519996 and 203104520023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414498776 + ... + 414499265.

It is an arithmetic number, because the mean of its divisors is an integer number (23626444197).

Almost surely, 2^203104520045 is an apocalyptic number.

It is an amenable number.

203104520045 is a deficient number, since it is larger than the sum of its proper divisors (80412810319).

203104520045 is an equidigital number, since it uses as much as digits as its factorization.

203104520045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828998060 (or 828998053 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 203104520045 its reverse (540025401302), we get a palindrome (743129921347).

The spelling of 203104520045 in words is "two hundred three billion, one hundred four million, five hundred twenty thousand, forty-five".