3128037212161 has 2 divisors, whose sum is σ = 3128037212162. Its totient is φ = 3128037212160.

The previous prime is 3128037212119. The next prime is 3128037212197. The reversal of 3128037212161 is 1612127308213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3112172298225 + 15864913936 = 1764135^2 + 125956^2 .

It is a cyclic number.

It is not a de Polignac number, because 3128037212161 - 2³⁵ = 3093677473793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3128037212161.

It is not a weakly prime, because it can be changed into another prime (3128037215161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564018606080 + 1564018606081.

It is an arithmetic number, because the mean of its divisors is an integer number (1564018606081).

Almost surely, 2^{3128037212161} is an apocalyptic number.

It is an amenable number.

3128037212161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128037212161 is an equidigital number, since it uses as much as digits as its factorization.

3128037212161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 3128037212161 in words is "three trillion, one hundred twenty-eight billion, thirty-seven million, two hundred twelve thousand, one hundred sixty-one".