2102340265 has 4 divisors (see below), whose sum is σ = 2522808324. Its totient is φ = 1681872208.

The previous prime is 2102340217. The next prime is 2102340281. The reversal of 2102340265 is 5620432012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 984641641 + 1117698624 = 31379^2 + 33432^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102340265 - 2²¹ = 2100243113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210234022 + ... + 210234031.

It is an arithmetic number, because the mean of its divisors is an integer number (630702081).

Almost surely, 2^2102340265 is an apocalyptic number.

It is an amenable number.

2102340265 is a deficient number, since it is larger than the sum of its proper divisors (420468059).

2102340265 is an equidigital number, since it uses as much as digits as its factorization.

2102340265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420468058.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2102340265 is about 45851.2842241087. The cubic root of 2102340265 is about 1281.0546859446.

Adding to 2102340265 its reverse (5620432012), we get a palindrome (7722772277).

The spelling of 2102340265 in words is "two billion, one hundred two million, three hundred forty thousand, two hundred sixty-five".