2126091011 has 32 divisors (see below), whose sum is σ = 2491078656. Its totient is φ = 1796256000.

The previous prime is 2126091001. The next prime is 2126091031. The reversal of 2126091011 is 1101906212.

It is a happy number.

It is not a de Polignac number, because 2126091011 - 2¹⁸ = 2125828867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2126091001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 893255 + ... + 895631.

It is an arithmetic number, because the mean of its divisors is an integer number (77846208).

Almost surely, 2^2126091011 is an apocalyptic number.

2126091011 is a deficient number, since it is larger than the sum of its proper divisors (364987645).

2126091011 is a wasteful number, since it uses less digits than its factorization.

2126091011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523.

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

The square root of 2126091011 is about 46109.5544437376. The cubic root of 2126091011 is about 1285.8607809402.

Adding to 2126091011 its reverse (1101906212), we get a palindrome (3227997223).

The spelling of 2126091011 in words is "two billion, one hundred twenty-six million, ninety-one thousand, eleven".