11172290111243 has 2 divisors, whose sum is σ = 11172290111244. Its totient is φ = 11172290111242.

The previous prime is 11172290111239. The next prime is 11172290111273. The reversal of 11172290111243 is 34211109227111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11172290111243 - 2² = 11172290111239 is a prime.

It is not a weakly prime, because it can be changed into another prime (11172290111273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5586145055621 + 5586145055622.

It is an arithmetic number, because the mean of its divisors is an integer number (5586145055622).

Almost surely, 2^{11172290111243} is an apocalyptic number.

11172290111243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11172290111243 is an equidigital number, since it uses as much as digits as its factorization.

11172290111243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 35.

Adding to 11172290111243 its reverse (34211109227111), we get a palindrome (45383399338354).

The spelling of 11172290111243 in words is "eleven trillion, one hundred seventy-two billion, two hundred ninety million, one hundred eleven thousand, two hundred forty-three".