11611402111 has 2 divisors, whose sum is σ = 11611402112. Its totient is φ = 11611402110.

The previous prime is 11611402109. The next prime is 11611402141. The reversal of 11611402111 is 11120411611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11611402111 - 2¹ = 11611402109 is a prime.

Together with 11611402109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11611402141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805701055 + 5805701056.

It is an arithmetic number, because the mean of its divisors is an integer number (5805701056).

Almost surely, 2^11611402111 is an apocalyptic number.

11611402111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11611402111 is an equidigital number, since it uses as much as digits as its factorization.

11611402111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 11611402111 its reverse (11120411611), we get a palindrome (22731813722).

The spelling of 11611402111 in words is "eleven billion, six hundred eleven million, four hundred two thousand, one hundred eleven".