11106421511 has 2 divisors, whose sum is σ = 11106421512. Its totient is φ = 11106421510.

The previous prime is 11106421483. The next prime is 11106421523. The reversal of 11106421511 is 11512460111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11106421511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11106421561) 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, 5553210755 + 5553210756.

It is an arithmetic number, because the mean of its divisors is an integer number (5553210756).

Almost surely, 2^11106421511 is an apocalyptic number.

11106421511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11106421511 is an equidigital number, since it uses as much as digits as its factorization.

11106421511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 23.

Adding to 11106421511 its reverse (11512460111), we get a palindrome (22618881622).

The spelling of 11106421511 in words is "eleven billion, one hundred six million, four hundred twenty-one thousand, five hundred eleven".