2011120169 has 4 divisors (see below), whose sum is σ = 2011288320. Its totient is φ = 2010952020.

The previous prime is 2011120157. The next prime is 2011120171. The reversal of 2011120169 is 9610211102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011120169 - 2¹² = 2011116073 is a prime.

It is a super-2 number, since 2×2011120169² = 8089208668317177122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011120469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64637 + ... + 90554.

It is an arithmetic number, because the mean of its divisors is an integer number (502822080).

Almost surely, 2^2011120169 is an apocalyptic number.

It is an amenable number.

2011120169 is a deficient number, since it is larger than the sum of its proper divisors (168151).

2011120169 is a wasteful number, since it uses less digits than its factorization.

2011120169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168150.

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

The square root of 2011120169 is about 44845.5144802688. The cubic root of 2011120169 is about 1262.2518246163.

The spelling of 2011120169 in words is "two billion, eleven million, one hundred twenty thousand, one hundred sixty-nine".