11630423511181 has 4 divisors (see below), whose sum is σ = 11630432632000. Its totient is φ = 11630414390364.

The previous prime is 11630423511169. The next prime is 11630423511193. The reversal of 11630423511181 is 18111532403611.

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 a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (11630423511169) and next prime (11630423511193).

It is a cyclic number.

It is not a de Polignac number, because 11630423511181 - 2¹⁵ = 11630423478413 is a prime.

It is a super-2 number, since 2×11630423511181² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11630423511181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11630423511151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261331 + ... + 5326768.

It is an arithmetic number, because the mean of its divisors is an integer number (2907608158000).

Almost surely, 2^{11630423511181} is an apocalyptic number.

It is an amenable number.

11630423511181 is a deficient number, since it is larger than the sum of its proper divisors (9120819).

11630423511181 is an equidigital number, since it uses as much as digits as its factorization.

11630423511181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9120818.

The product of its (nonzero) digits is 17280, while the sum is 37.

Adding to 11630423511181 its reverse (18111532403611), we get a palindrome (29741955914792).

The spelling of 11630423511181 in words is "eleven trillion, six hundred thirty billion, four hundred twenty-three million, five hundred eleven thousand, one hundred eighty-one".