11131325530 has 64 divisors (see below), whose sum is σ = 22020139008. Its totient is φ = 4025998080.

The previous prime is 11131325507. The next prime is 11131325531. The reversal of 11131325530 is 3552313111.

It is a junction number, because it is equal to n+sod(n) for n = 11131325495 and 11131325504.

It is not an unprimeable number, because it can be changed into a prime (11131325531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7102807 + ... + 7104373.

It is an arithmetic number, because the mean of its divisors is an integer number (344064672).

Almost surely, 2^11131325530 is an apocalyptic number.

11131325530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11131325530 is a deficient number, since it is larger than the sum of its proper divisors (10888813478).

11131325530 is a wasteful number, since it uses less digits than its factorization.

11131325530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671.

The product of its (nonzero) digits is 1350, while the sum is 25.

Adding to 11131325530 its reverse (3552313111), we get a palindrome (14683638641).

The spelling of 11131325530 in words is "eleven billion, one hundred thirty-one million, three hundred twenty-five thousand, five hundred thirty".