11530140445 has 16 divisors (see below), whose sum is σ = 14052147120. Its totient is φ = 9081206784.

The previous prime is 11530140397. The next prime is 11530140463. The reversal of 11530140445 is 54404103511.

It can be written as a sum of positive squares in 8 ways, for example, as 971755929 + 10558384516 = 31173^2 + 102754^2 .

It is a cyclic number.

It is not a de Polignac number, because 11530140445 - 2¹¹ = 11530138397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18189 + ... + 152941.

It is an arithmetic number, because the mean of its divisors is an integer number (878259195).

Almost surely, 2^11530140445 is an apocalyptic number.

It is an amenable number.

11530140445 is a deficient number, since it is larger than the sum of its proper divisors (2522006675).

11530140445 is a wasteful number, since it uses less digits than its factorization.

11530140445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135024.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 11530140445 its reverse (54404103511), we get a palindrome (65934243956).

The spelling of 11530140445 in words is "eleven billion, five hundred thirty million, one hundred forty thousand, four hundred forty-five".