5131110209 has 2 divisors, whose sum is σ = 5131110210. Its totient is φ = 5131110208.

The previous prime is 5131110191. The next prime is 5131110217. The reversal of 5131110209 is 9020111315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5008675984 + 122434225 = 70772^2 + 11065^2 .

It is a cyclic number.

It is not a de Polignac number, because 5131110209 - 2¹⁶ = 5131044673 is a prime.

It is not a weakly prime, because it can be changed into another prime (5131110239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565555104 + 2565555105.

It is an arithmetic number, because the mean of its divisors is an integer number (2565555105).

Almost surely, 2^5131110209 is an apocalyptic number.

It is an amenable number.

5131110209 is a deficient number, since it is larger than the sum of its proper divisors (1).

5131110209 is an equidigital number, since it uses as much as digits as its factorization.

5131110209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 5131110209 is about 71631.7681549185. The cubic root of 5131110209 is about 1724.7935294712.

The spelling of 5131110209 in words is "five billion, one hundred thirty-one million, one hundred ten thousand, two hundred nine".