2011131194 has 4 divisors (see below), whose sum is σ = 3016696794. Its totient is φ = 1005565596.

The previous prime is 2011131193. The next prime is 2011131211. The reversal of 2011131194 is 4911311102.

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

It can be written as a sum of positive squares in only one way, i.e., 1891119169 + 120012025 = 43487^2 + 10955^2 .

It is not an unprimeable number, because it can be changed into a prime (2011131193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502782797 + ... + 502782800.

Almost surely, 2^2011131194 is an apocalyptic number.

2011131194 is a deficient number, since it is larger than the sum of its proper divisors (1005565600).

2011131194 is a wasteful number, since it uses less digits than its factorization.

2011131194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005565599.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 2011131194 is about 44845.6374020930. The cubic root of 2011131194 is about 1262.2541311751.

Adding to 2011131194 its reverse (4911311102), we get a palindrome (6922442296).

The spelling of 2011131194 in words is "two billion, eleven million, one hundred thirty-one thousand, one hundred ninety-four".