2656043101 has 2 divisors, whose sum is σ = 2656043102. Its totient is φ = 2656043100.

The previous prime is 2656043083. The next prime is 2656043129. The reversal of 2656043101 is 1013406562.

It is an a-pointer prime, because the next prime (2656043129) can be obtained adding 2656043101 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1499703076 + 1156340025 = 38726^2 + 34005^2 .

It is a cyclic number.

It is not a de Polignac number, because 2656043101 - 2⁵ = 2656043069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2656043101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656043171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328021550 + 1328021551.

It is an arithmetic number, because the mean of its divisors is an integer number (1328021551).

Almost surely, 2^2656043101 is an apocalyptic number.

It is an amenable number.

2656043101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656043101 is an equidigital number, since it uses as much as digits as its factorization.

2656043101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2656043101 is about 51536.8130660017. The cubic root of 2656043101 is about 1384.8786056156.

Adding to 2656043101 its reverse (1013406562), we get a palindrome (3669449663).

The spelling of 2656043101 in words is "two billion, six hundred fifty-six million, forty-three thousand, one hundred one".