5311331309 has 2 divisors, whose sum is σ = 5311331310. Its totient is φ = 5311331308.

The previous prime is 5311331287. The next prime is 5311331323. The reversal of 5311331309 is 9031331135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5306394025 + 4937284 = 72845^2 + 2222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5311331309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5311331329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2655665654 + 2655665655.

It is an arithmetic number, because the mean of its divisors is an integer number (2655665655).

Almost surely, 2^5311331309 is an apocalyptic number.

It is an amenable number.

5311331309 is a deficient number, since it is larger than the sum of its proper divisors (1).

5311331309 is an equidigital number, since it uses as much as digits as its factorization.

5311331309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3645, while the sum is 29.

The square root of 5311331309 is about 72878.8810904778. The cubic root of 5311331309 is about 1744.7550507154.

The spelling of 5311331309 in words is "five billion, three hundred eleven million, three hundred thirty-one thousand, three hundred nine".