1105215011 has 4 divisors (see below), whose sum is σ = 1128730272. Its totient is φ = 1081699752.

The previous prime is 1105214987. The next prime is 1105215037. The reversal of 1105215011 is 1105125011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1105215011 - 2¹⁰ = 1105213987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105215511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11757560 + ... + 11757653.

It is an arithmetic number, because the mean of its divisors is an integer number (282182568).

Almost surely, 2^1105215011 is an apocalyptic number.

1105215011 is a deficient number, since it is larger than the sum of its proper divisors (23515261).

1105215011 is an equidigital number, since it uses as much as digits as its factorization.

1105215011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23515260.

The product of its (nonzero) digits is 50, while the sum is 17.

The square root of 1105215011 is about 33244.7741908409. The cubic root of 1105215011 is about 1033.9088630770.

Subtracting from 1105215011 its reverse (1105125011), we obtain a square (90000 = 300²).

The spelling of 1105215011 in words is "one billion, one hundred five million, two hundred fifteen thousand, eleven".