2106151023 has 4 divisors (see below), whose sum is σ = 2808201368. Its totient is φ = 1404100680.

The previous prime is 2106150983. The next prime is 2106151027. The reversal of 2106151023 is 3201516012.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2106151023 - 2¹⁸ = 2105888879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106151027) 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 3 ways as a sum of consecutive naturals, for example, 351025168 + ... + 351025173.

It is an arithmetic number, because the mean of its divisors is an integer number (702050342).

Almost surely, 2^2106151023 is an apocalyptic number.

2106151023 is a deficient number, since it is larger than the sum of its proper divisors (702050345).

2106151023 is an equidigital number, since it uses as much as digits as its factorization.

2106151023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702050344.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2106151023 is about 45892.8210398969. The cubic root of 2106151023 is about 1281.8282433654.

Adding to 2106151023 its reverse (3201516012), we get a palindrome (5307667035).

The spelling of 2106151023 in words is "two billion, one hundred six million, one hundred fifty-one thousand, twenty-three".