265204120512103 has 4 divisors (see below), whose sum is σ = 265504464930328. Its totient is φ = 264903776093880.

The previous prime is 265204120512059. The next prime is 265204120512169. The reversal of 265204120512103 is 301215021402562.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 265204120512103 - 2⁹ = 265204120511591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265204120512203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150172207788 + ... + 150172209553.

It is an arithmetic number, because the mean of its divisors is an integer number (66376116232582).

Almost surely, 2^{265204120512103} is an apocalyptic number.

265204120512103 is a deficient number, since it is larger than the sum of its proper divisors (300344418225).

265204120512103 is an equidigital number, since it uses as much as digits as its factorization.

265204120512103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300344418224.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 265204120512103 its reverse (301215021402562), we get a palindrome (566419141914665).

The spelling of 265204120512103 in words is "two hundred sixty-five trillion, two hundred four billion, one hundred twenty million, five hundred twelve thousand, one hundred three".