3031117213 has 2 divisors, whose sum is σ = 3031117214. Its totient is φ = 3031117212.

The previous prime is 3031117211. The next prime is 3031117217. The reversal of 3031117213 is 3127111303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1672973604 + 1358143609 = 40902^2 + 36853^2 .

It is a cyclic number.

It is not a de Polignac number, because 3031117213 - 2¹ = 3031117211 is a prime.

Together with 3031117211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3031117211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515558606 + 1515558607.

It is an arithmetic number, because the mean of its divisors is an integer number (1515558607).

Almost surely, 2^3031117213 is an apocalyptic number.

It is an amenable number.

3031117213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3031117213 is an equidigital number, since it uses as much as digits as its factorization.

3031117213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 3031117213 is about 55055.5829412422. The cubic root of 3031117213 is about 1447.2189600972.

Adding to 3031117213 its reverse (3127111303), we get a palindrome (6158228516).

It can be divided in two parts, 30311 and 17213, that added together give a square (47524 = 218²).

The spelling of 3031117213 in words is "three billion, thirty-one million, one hundred seventeen thousand, two hundred thirteen".