2101102071 has 4 divisors (see below), whose sum is σ = 2801469432. Its totient is φ = 1400734712.

The previous prime is 2101102067. The next prime is 2101102093. The reversal of 2101102071 is 1702011012.

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

It is a cyclic number.

It is not a de Polignac number, because 2101102071 - 2² = 2101102067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101102071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101102021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350183676 + ... + 350183681.

It is an arithmetic number, because the mean of its divisors is an integer number (700367358).

Almost surely, 2^2101102071 is an apocalyptic number.

2101102071 is a deficient number, since it is larger than the sum of its proper divisors (700367361).

2101102071 is an equidigital number, since it uses as much as digits as its factorization.

2101102071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700367360.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 2101102071 is about 45837.7799527857. The cubic root of 2101102071 is about 1280.8031399642.

Adding to 2101102071 its reverse (1702011012), we get a palindrome (3803113083).

The spelling of 2101102071 in words is "two billion, one hundred one million, one hundred two thousand, seventy-one".