10513311131 has 4 divisors (see below), whose sum is σ = 10558432872. Its totient is φ = 10468189392.

The previous prime is 10513311041. The next prime is 10513311181. The reversal of 10513311131 is 13111331501.

10513311131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13111331501 = 19 ⋅690070079.

It is a cyclic number.

It is not a de Polignac number, because 10513311131 - 2¹⁴ = 10513294747 is a prime.

It is a super-2 number, since 2×10513311131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10513311181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22560521 + ... + 22560986.

It is an arithmetic number, because the mean of its divisors is an integer number (2639608218).

Almost surely, 2^10513311131 is an apocalyptic number.

10513311131 is a deficient number, since it is larger than the sum of its proper divisors (45121741).

10513311131 is an equidigital number, since it uses as much as digits as its factorization.

10513311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45121740.

The product of its (nonzero) digits is 135, while the sum is 20.

Adding to 10513311131 its reverse (13111331501), we get a palindrome (23624642632).

The spelling of 10513311131 in words is "ten billion, five hundred thirteen million, three hundred eleven thousand, one hundred thirty-one".