11530503101 has 24 divisors (see below), whose sum is σ = 12791752704. Its totient is φ = 10385444160.

The previous prime is 11530503067. The next prime is 11530503107. The reversal of 11530503101 is 10130503511.

It is a de Polignac number, because none of the positive numbers 2^k-11530503101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530503107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1304840 + ... + 1313646.

It is an arithmetic number, because the mean of its divisors is an integer number (532989696).

Almost surely, 2^11530503101 is an apocalyptic number.

It is an amenable number.

11530503101 is a deficient number, since it is larger than the sum of its proper divisors (1261249603).

11530503101 is a wasteful number, since it uses less digits than its factorization.

11530503101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9021 (or 9008 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 20.

The spelling of 11530503101 in words is "eleven billion, five hundred thirty million, five hundred three thousand, one hundred one".