13011131530 has 16 divisors (see below), whose sum is σ = 23421381984. Its totient is φ = 5204153680.

The previous prime is 13011131519. The next prime is 13011131537. The reversal of 13011131530 is 3513111031.

It is a junction number, because it is equal to n+sod(n) for n = 13011131498 and 13011131507.

It is not an unprimeable number, because it can be changed into a prime (13011131537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252549 + ... + 299671.

It is an arithmetic number, because the mean of its divisors is an integer number (1463836374).

Almost surely, 2^13011131530 is an apocalyptic number.

13011131530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13011131530 is a deficient number, since it is larger than the sum of its proper divisors (10410250454).

13011131530 is a wasteful number, since it uses less digits than its factorization.

13011131530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74741.

The product of its (nonzero) digits is 135, while the sum is 19.

Adding to 13011131530 its reverse (3513111031), we get a palindrome (16524242561).

The spelling of 13011131530 in words is "thirteen billion, eleven million, one hundred thirty-one thousand, five hundred thirty".