2102520663 has 6 divisors (see below), whose sum is σ = 3036974304. Its totient is φ = 1401680436.

The previous prime is 2102520661. The next prime is 2102520697. The reversal of 2102520663 is 3660252012.

It is not a de Polignac number, because 2102520663 - 2¹ = 2102520661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102520661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116806695 + ... + 116806712.

It is an arithmetic number, because the mean of its divisors is an integer number (506162384).

Almost surely, 2^2102520663 is an apocalyptic number.

2102520663 is a deficient number, since it is larger than the sum of its proper divisors (934453641).

2102520663 is a wasteful number, since it uses less digits than its factorization.

2102520663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233613413 (or 233613410 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2102520663 is about 45853.2513896234. The cubic root of 2102520663 is about 1281.0913265553.

Adding to 2102520663 its reverse (3660252012), we get a palindrome (5762772675).

The spelling of 2102520663 in words is "two billion, one hundred two million, five hundred twenty thousand, six hundred sixty-three".