3121026113 has 2 divisors, whose sum is σ = 3121026114. Its totient is φ = 3121026112.

The previous prime is 3121026071. The next prime is 3121026121. The reversal of 3121026113 is 3116201213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2416017409 + 705008704 = 49153^2 + 26552^2 .

It is an emirp because it is prime and its reverse (3116201213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3121026113 - 2¹² = 3121022017 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121026133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560513056 + 1560513057.

It is an arithmetic number, because the mean of its divisors is an integer number (1560513057).

Almost surely, 2^3121026113 is an apocalyptic number.

It is an amenable number.

3121026113 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121026113 is an equidigital number, since it uses as much as digits as its factorization.

3121026113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 3121026113 is about 55866.1446047604. The cubic root of 3121026113 is about 1461.3888880429.

Adding to 3121026113 its reverse (3116201213), we get a palindrome (6237227326).

The spelling of 3121026113 in words is "three billion, one hundred twenty-one million, twenty-six thousand, one hundred thirteen".