1135205211 has 16 divisors (see below), whose sum is σ = 1738623744. Its totient is φ = 645393504.

The previous prime is 1135205207. The next prime is 1135205221. The reversal of 1135205211 is 1125025311.

It is not a de Polignac number, because 1135205211 - 2² = 1135205207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1135205221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133065 + ... + 141338.

It is an arithmetic number, because the mean of its divisors is an integer number (108663984).

Almost surely, 2^1135205211 is an apocalyptic number.

1135205211 is a deficient number, since it is larger than the sum of its proper divisors (603418533).

1135205211 is a wasteful number, since it uses less digits than its factorization.

1135205211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274610.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1135205211 is about 33692.8065171188. The cubic root of 1135205211 is about 1043.1772934910.

The spelling of 1135205211 in words is "one billion, one hundred thirty-five million, two hundred five thousand, two hundred eleven".