10520315263 has 4 divisors (see below), whose sum is σ = 10523691360. Its totient is φ = 10516939168.

The previous prime is 10520315261. The next prime is 10520315287. The reversal of 10520315263 is 36251302501.

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 10520315263 - 2¹ = 10520315261 is a prime.

It is a super-2 number, since 2×10520315263² (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 (10520315261) 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, 1683370 + ... + 1689607.

It is an arithmetic number, because the mean of its divisors is an integer number (2630922840).

Almost surely, 2^10520315263 is an apocalyptic number.

10520315263 is a deficient number, since it is larger than the sum of its proper divisors (3376097).

10520315263 is an equidigital number, since it uses as much as digits as its factorization.

10520315263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376096.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 10520315263 its reverse (36251302501), we get a palindrome (46771617764).

The spelling of 10520315263 in words is "ten billion, five hundred twenty million, three hundred fifteen thousand, two hundred sixty-three".