5111231539 has 2 divisors, whose sum is σ = 5111231540. Its totient is φ = 5111231538.

The previous prime is 5111231501. The next prime is 5111231561. The reversal of 5111231539 is 9351321115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5111231539 - 2¹¹ = 5111229491 is a prime.

It is a super-2 number, since 2×5111231539² = 52249375690536617042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5111231539.

It is not a weakly prime, because it can be changed into another prime (5111231239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555615769 + 2555615770.

It is an arithmetic number, because the mean of its divisors is an integer number (2555615770).

Almost surely, 2^5111231539 is an apocalyptic number.

5111231539 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111231539 is an equidigital number, since it uses as much as digits as its factorization.

5111231539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 31.

The square root of 5111231539 is about 71492.8775403536. The cubic root of 5111231539 is about 1722.5632795749.

The spelling of 5111231539 in words is "five billion, one hundred eleven million, two hundred thirty-one thousand, five hundred thirty-nine".