11112201101231 has 2 divisors, whose sum is σ = 11112201101232. Its totient is φ = 11112201101230.

The previous prime is 11112201101087. The next prime is 11112201101311. The reversal of 11112201101231 is 13210110221111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112201101231 is a prime.

It is a super-2 number, since 2×11112201101231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112201301231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556100550615 + 5556100550616.

It is an arithmetic number, because the mean of its divisors is an integer number (5556100550616).

Almost surely, 2^{11112201101231} is an apocalyptic number.

11112201101231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112201101231 is an equidigital number, since it uses as much as digits as its factorization.

11112201101231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 11112201101231 its reverse (13210110221111), we get a palindrome (24322311322342).

The spelling of 11112201101231 in words is "eleven trillion, one hundred twelve billion, two hundred one million, one hundred one thousand, two hundred thirty-one".