11151021105 has 24 divisors (see below), whose sum is σ = 22089642432. Its totient is φ = 5097609504.

The previous prime is 11151021071. The next prime is 11151021121. The reversal of 11151021105 is 50112015111.

It is not a de Polignac number, because 11151021105 - 2¹⁰ = 11151020081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17699719 + ... + 17700348.

It is an arithmetic number, because the mean of its divisors is an integer number (920401768).

Almost surely, 2^11151021105 is an apocalyptic number.

11151021105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11151021105 is a deficient number, since it is larger than the sum of its proper divisors (10938621327).

11151021105 is a wasteful number, since it uses less digits than its factorization.

11151021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35400085 (or 35400082 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 18.

Adding to 11151021105 its reverse (50112015111), we get a palindrome (61263036216).

The spelling of 11151021105 in words is "eleven billion, one hundred fifty-one million, twenty-one thousand, one hundred five".