2100515263 has 16 divisors (see below), whose sum is σ = 2620065024. Its totient is φ = 1635989760.

The previous prime is 2100515237. The next prime is 2100515293. The reversal of 2100515263 is 3625150012.

It is a cyclic number.

It is not a de Polignac number, because 2100515263 - 2⁹ = 2100514751 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 (2100515233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199456 + ... + 209722.

It is an arithmetic number, because the mean of its divisors is an integer number (163754064).

Almost surely, 2^2100515263 is an apocalyptic number.

2100515263 is a deficient number, since it is larger than the sum of its proper divisors (519549761).

2100515263 is a wasteful number, since it uses less digits than its factorization.

2100515263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2100515263 is about 45831.3785849826. The cubic root of 2100515263 is about 1280.6838921467.

Adding to 2100515263 its reverse (3625150012), we get a palindrome (5725665275).

The spelling of 2100515263 in words is "two billion, one hundred million, five hundred fifteen thousand, two hundred sixty-three".