5111321399 has 2 divisors, whose sum is σ = 5111321400. Its totient is φ = 5111321398.

The previous prime is 5111321357. The next prime is 5111321407. The reversal of 5111321399 is 9931231115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5111321399 - 2¹² = 5111317303 is a prime.

It is a super-2 number, since 2×5111321399² = 52251212887750634402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5111321329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555660699 + 2555660700.

It is an arithmetic number, because the mean of its divisors is an integer number (2555660700).

Almost surely, 2^5111321399 is an apocalyptic number.

5111321399 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111321399 is an equidigital number, since it uses as much as digits as its factorization.

5111321399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 35.

The square root of 5111321399 is about 71493.5059918032. The cubic root of 5111321399 is about 1722.5733742476.

The spelling of 5111321399 in words is "five billion, one hundred eleven million, three hundred twenty-one thousand, three hundred ninety-nine".