11101231 has 2 divisors, whose sum is σ = 11101232. Its totient is φ = 11101230.

The previous prime is 11101217. The next prime is 11101261. The reversal of 11101231 is 13210111.

11101231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11101231 - 2⁵ = 11101199 is a prime.

It is a super-2 number, since 2×11101231² = 246474659430722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550615 + 5550616.

It is an arithmetic number, because the mean of its divisors is an integer number (5550616).

Almost surely, 2^11101231 is an apocalyptic number.

11101231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101231 is an equidigital number, since it uses as much as digits as its factorization.

11101231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 11101231 is about 3331.8509870641. The cubic root of 11101231 is about 223.0781563608.

Adding to 11101231 its reverse (13210111), we get a palindrome (24311342).

The spelling of 11101231 in words is "eleven million, one hundred one thousand, two hundred thirty-one".