11120530231 has 2 divisors, whose sum is σ = 11120530232. Its totient is φ = 11120530230.

The previous prime is 11120530189. The next prime is 11120530237. The reversal of 11120530231 is 13203502111.

It is a strong prime.

It is an emirp because it is prime and its reverse (13203502111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11120530231 is a prime.

It is a super-2 number, since 2×11120530231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11120530199 and 11120530208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11120530237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560265115 + 5560265116.

It is an arithmetic number, because the mean of its divisors is an integer number (5560265116).

Almost surely, 2^11120530231 is an apocalyptic number.

11120530231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120530231 is an equidigital number, since it uses as much as digits as its factorization.

11120530231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The spelling of 11120530231 in words is "eleven billion, one hundred twenty million, five hundred thirty thousand, two hundred thirty-one".