3123202613 has 2 divisors, whose sum is σ = 3123202614. Its totient is φ = 3123202612.

The previous prime is 3123202609. The next prime is 3123202619. The reversal of 3123202613 is 3162023213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2625332644 + 497869969 = 51238^2 + 22313^2 .

It is an emirp because it is prime and its reverse (3162023213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3123202613 - 2² = 3123202609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123202619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561601306 + 1561601307.

It is an arithmetic number, because the mean of its divisors is an integer number (1561601307).

Almost surely, 2^3123202613 is an apocalyptic number.

It is an amenable number.

3123202613 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123202613 is an equidigital number, since it uses as much as digits as its factorization.

3123202613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3123202613 is about 55885.6208071450. The cubic root of 3123202613 is about 1461.7285171384.

Adding to 3123202613 its reverse (3162023213), we get a palindrome (6285225826).

The spelling of 3123202613 in words is "three billion, one hundred twenty-three million, two hundred two thousand, six hundred thirteen".