10520543354013 has 48 divisors (see below), whose sum is σ = 18952366118400. Its totient is φ = 5463405966240.

The previous prime is 10520543353997. The next prime is 10520543354023. The reversal of 10520543354013 is 31045334502501.

10520543354013 is a `hidden beast` number, since 1 + 0 + 5 + 20 + 54 + 33 + 540 + 13 = 666.

It is not a de Polignac number, because 10520543354013 - 2⁴ = 10520543353997 is a prime.

It is a super-2 number, since 2×10520543354013² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10520543354023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 422103 + ... + 4606436.

It is an arithmetic number, because the mean of its divisors is an integer number (394840960800).

Almost surely, 2^{10520543354013} is an apocalyptic number.

It is an amenable number.

10520543354013 is a deficient number, since it is larger than the sum of its proper divisors (8431822764387).

10520543354013 is a wasteful number, since it uses less digits than its factorization.

10520543354013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031582 (or 5031579 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 10520543354013 its reverse (31045334502501), we get a palindrome (41565877856514).

The spelling of 10520543354013 in words is "ten trillion, five hundred twenty billion, five hundred forty-three million, three hundred fifty-four thousand, thirteen".