2106101511 has 12 divisors (see below), whose sum is σ = 3078800088. Its totient is φ = 1387150704.

The previous prime is 2106101509. The next prime is 2106101521. The reversal of 2106101511 is 1151016012.

It is a happy number.

2106101511 is a `hidden beast` number, since 2 + 1 + 0 + 610 + 1 + 51 + 1 = 666.

It is not a de Polignac number, because 2106101511 - 2¹ = 2106101509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106101521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1408960 + ... + 1410453.

It is an arithmetic number, because the mean of its divisors is an integer number (256566674).

Almost surely, 2^2106101511 is an apocalyptic number.

2106101511 is a deficient number, since it is larger than the sum of its proper divisors (972698577).

2106101511 is a wasteful number, since it uses less digits than its factorization.

2106101511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819502 (or 2819499 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 2106101511 is about 45892.2816059520. The cubic root of 2106101511 is about 1281.8181987585.

Adding to 2106101511 its reverse (1151016012), we get a palindrome (3257117523).

The spelling of 2106101511 in words is "two billion, one hundred six million, one hundred one thousand, five hundred eleven".