521020114512103 has 16 divisors (see below), whose sum is σ = 525484033043200. Its totient is φ = 516578066694144.

The previous prime is 521020114512013. The next prime is 521020114512113. The reversal of 521020114512103 is 301215411020125.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-521020114512103 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 (521020114512113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77241223 + ... + 83715271.

It is an arithmetic number, because the mean of its divisors is an integer number (32842752065200).

Almost surely, 2^{521020114512103} is an apocalyptic number.

521020114512103 is a deficient number, since it is larger than the sum of its proper divisors (4463918531097).

521020114512103 is a wasteful number, since it uses less digits than its factorization.

521020114512103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6475738.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 521020114512103 its reverse (301215411020125), we get a palindrome (822235525532228).

The spelling of 521020114512103 in words is "five hundred twenty-one trillion, twenty billion, one hundred fourteen million, five hundred twelve thousand, one hundred three".