11430530161 has 4 divisors (see below), whose sum is σ = 11431988800. Its totient is φ = 11429071524.

The previous prime is 11430530129. The next prime is 11430530183. The reversal of 11430530161 is 16103503411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16103503411 = 53 ⋅303839687.

It is a cyclic number.

It is not a de Polignac number, because 11430530161 - 2⁵ = 11430530129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11430530561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717501 + ... + 733258.

It is an arithmetic number, because the mean of its divisors is an integer number (2857997200).

Almost surely, 2^11430530161 is an apocalyptic number.

It is an amenable number.

11430530161 is a deficient number, since it is larger than the sum of its proper divisors (1458639).

11430530161 is an equidigital number, since it uses as much as digits as its factorization.

11430530161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458638.

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 11430530161 in words is "eleven billion, four hundred thirty million, five hundred thirty thousand, one hundred sixty-one".