3113242556261 has 2 divisors, whose sum is σ = 3113242556262. Its totient is φ = 3113242556260.

The previous prime is 3113242556231. The next prime is 3113242556311. The reversal of 3113242556261 is 1626552423113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3016144257025 + 97098299236 = 1736705^2 + 311606^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113242556261 - 2²⁶ = 3113175447397 is a prime.

It is a super-2 number, since 2×3113242556261² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113242556231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556621278130 + 1556621278131.

It is an arithmetic number, because the mean of its divisors is an integer number (1556621278131).

Almost surely, 2^{3113242556261} is an apocalyptic number.

It is an amenable number.

3113242556261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113242556261 is an equidigital number, since it uses as much as digits as its factorization.

3113242556261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

Adding to 3113242556261 its reverse (1626552423113), we get a palindrome (4739794979374).

The spelling of 3113242556261 in words is "three trillion, one hundred thirteen billion, two hundred forty-two million, five hundred fifty-six thousand, two hundred sixty-one".