5203128499 has 2 divisors, whose sum is σ = 5203128500. Its totient is φ = 5203128498.

The previous prime is 5203128487. The next prime is 5203128551. The reversal of 5203128499 is 9948213025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5203128499 - 2¹⁵ = 5203095731 is a prime.

It is not a weakly prime, because it can be changed into another prime (5203128419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2601564249 + 2601564250.

It is an arithmetic number, because the mean of its divisors is an integer number (2601564250).

Almost surely, 2^5203128499 is an apocalyptic number.

5203128499 is a deficient number, since it is larger than the sum of its proper divisors (1).

5203128499 is an equidigital number, since it uses as much as digits as its factorization.

5203128499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 5203128499 is about 72132.7144851766. The cubic root of 5203128499 is about 1732.8255805375.

The spelling of 5203128499 in words is "five billion, two hundred three million, one hundred twenty-eight thousand, four hundred ninety-nine".