10520325121 has 4 divisors (see below), whose sum is σ = 10526247172. Its totient is φ = 10514403072.

The previous prime is 10520325091. The next prime is 10520325131. The reversal of 10520325121 is 12152302501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12152302501 = 937 ⋅12969373.

It can be written as a sum of positive squares in 2 ways, for example, as 8918724721 + 1601600400 = 94439^2 + 40020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10520325121 is a prime.

It is a super-3 number, since 3×10520325121³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10520325092 and 10520325101.

It is not an unprimeable number, because it can be changed into a prime (10520325131) 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, 2958360 + ... + 2961913.

It is an arithmetic number, because the mean of its divisors is an integer number (2631561793).

Almost surely, 2^10520325121 is an apocalyptic number.

It is an amenable number.

10520325121 is a deficient number, since it is larger than the sum of its proper divisors (5922051).

10520325121 is an equidigital number, since it uses as much as digits as its factorization.

10520325121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922050.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 10520325121 its reverse (12152302501), we get a palindrome (22672627622).

The spelling of 10520325121 in words is "ten billion, five hundred twenty million, three hundred twenty-five thousand, one hundred twenty-one".