2561303102 has 4 divisors (see below), whose sum is σ = 3841954656. Its totient is φ = 1280651550.

The previous prime is 2561303093. The next prime is 2561303141. The reversal of 2561303102 is 2013031652.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640325774 + ... + 640325777.

It is an arithmetic number, because the mean of its divisors is an integer number (960488664).

Almost surely, 2^2561303102 is an apocalyptic number.

2561303102 is a deficient number, since it is larger than the sum of its proper divisors (1280651554).

2561303102 is a wasteful number, since it uses less digits than its factorization.

2561303102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280651553.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2561303102 is about 50609.3183317065. The cubic root of 2561303102 is about 1368.2128297477.

Adding to 2561303102 its reverse (2013031652), we get a palindrome (4574334754).

The spelling of 2561303102 in words is "two billion, five hundred sixty-one million, three hundred three thousand, one hundred two".