2101042011 has 16 divisors (see below), whose sum is σ = 2846914560. Its totient is φ = 1378016640.

The previous prime is 2101041977. The next prime is 2101042043. The reversal of 2101042011 is 1102401012.

It is a happy number.

It is not a de Polignac number, because 2101042011 - 2⁶ = 2101041947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101002011) 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, 91731 + ... + 112323.

It is an arithmetic number, because the mean of its divisors is an integer number (177932160).

Almost surely, 2^2101042011 is an apocalyptic number.

2101042011 is a deficient number, since it is larger than the sum of its proper divisors (745872549).

2101042011 is a wasteful number, since it uses less digits than its factorization.

2101042011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21146.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2101042011 is about 45837.1248116633. The cubic root of 2101042011 is about 1280.7909359292.

Adding to 2101042011 its reverse (1102401012), we get a palindrome (3203443023).

The spelling of 2101042011 in words is "two billion, one hundred one million, forty-two thousand, eleven".