2011023106 has 4 divisors (see below), whose sum is σ = 3016534662. Its totient is φ = 1005511552.

The previous prime is 2011023089. The next prime is 2011023107. The reversal of 2011023106 is 6013201102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6013201102 = 2 ⋅3006600551.

It can be written as a sum of positive squares in only one way, i.e., 1728480625 + 282542481 = 41575^2 + 16809^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2011023106.

It is not an unprimeable number, because it can be changed into a prime (2011023107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502755775 + ... + 502755778.

Almost surely, 2^2011023106 is an apocalyptic number.

2011023106 is a deficient number, since it is larger than the sum of its proper divisors (1005511556).

2011023106 is a wasteful number, since it uses less digits than its factorization.

2011023106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005511555.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2011023106 is about 44844.4322742523. The cubic root of 2011023106 is about 1262.2315175387.

Adding to 2011023106 its reverse (6013201102), we get a palindrome (8024224208).

The spelling of 2011023106 in words is "two billion, eleven million, twenty-three thousand, one hundred six".