1111130312111 has 2 divisors, whose sum is σ = 1111130312112. Its totient is φ = 1111130312110.

The previous prime is 1111130312107. The next prime is 1111130312153. The reversal of 1111130312111 is 1112130311111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111130312111 - 2² = 1111130312107 is a prime.

It is a super-2 number, since 2×1111130312111² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1111130312111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111130312101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555565156055 + 555565156056.

It is an arithmetic number, because the mean of its divisors is an integer number (555565156056).

Almost surely, 2^{1111130312111} is an apocalyptic number.

1111130312111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111130312111 is an equidigital number, since it uses as much as digits as its factorization.

1111130312111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 1111130312111 its reverse (1112130311111), we get a palindrome (2223260623222).

It can be divided in two parts, 1111130 and 312111, that added together give a palindrome (1423241).

The spelling of 1111130312111 in words is "one trillion, one hundred eleven billion, one hundred thirty million, three hundred twelve thousand, one hundred eleven".