10520346413 has 4 divisors (see below), whose sum is σ = 10541015580. Its totient is φ = 10499677248.

The previous prime is 10520346409. The next prime is 10520346433. The reversal of 10520346413 is 31464302501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31464302501 = 2543 ⋅12372907.

It can be written as a sum of positive squares in 2 ways, for example, as 9537084964 + 983261449 = 97658^2 + 31357^2 .

It is a cyclic number.

It is not a de Polignac number, because 10520346413 - 2² = 10520346409 is a prime.

It is a super-2 number, since 2×10520346413² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10520346433) 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, 10333820 + ... + 10334837.

It is an arithmetic number, because the mean of its divisors is an integer number (2635253895).

Almost surely, 2^10520346413 is an apocalyptic number.

It is an amenable number.

10520346413 is a deficient number, since it is larger than the sum of its proper divisors (20669167).

10520346413 is an equidigital number, since it uses as much as digits as its factorization.

10520346413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20669166.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 10520346413 its reverse (31464302501), we get a palindrome (41984648914).

The spelling of 10520346413 in words is "ten billion, five hundred twenty million, three hundred forty-six thousand, four hundred thirteen".