3128203049 has 2 divisors, whose sum is σ = 3128203050. Its totient is φ = 3128203048.

The previous prime is 3128203003. The next prime is 3128203079. The reversal of 3128203049 is 9403028213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3108843049 + 19360000 = 55757^2 + 4400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3128203049 is a prime.

It is not a weakly prime, because it can be changed into another prime (3128203079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564101524 + 1564101525.

It is an arithmetic number, because the mean of its divisors is an integer number (1564101525).

Almost surely, 2^3128203049 is an apocalyptic number.

It is an amenable number.

3128203049 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128203049 is an equidigital number, since it uses as much as digits as its factorization.

3128203049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3128203049 is about 55930.3410413346. The cubic root of 3128203049 is about 1462.5082063873.

The spelling of 3128203049 in words is "three billion, one hundred twenty-eight million, two hundred three thousand, forty-nine".