3220312129 has 2 divisors, whose sum is σ = 3220312130. Its totient is φ = 3220312128.

The previous prime is 3220312111. The next prime is 3220312141. The reversal of 3220312129 is 9212130223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2973193729 + 247118400 = 54527^2 + 15720^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220312129 - 2⁷ = 3220312001 is a prime.

It is not a weakly prime, because it can be changed into another prime (3220312169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610156064 + 1610156065.

It is an arithmetic number, because the mean of its divisors is an integer number (1610156065).

Almost surely, 2^3220312129 is an apocalyptic number.

It is an amenable number.

3220312129 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220312129 is an equidigital number, since it uses as much as digits as its factorization.

3220312129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 3220312129 is about 56747.7940452314. The cubic root of 3220312129 is about 1476.7239640022.

The spelling of 3220312129 in words is "three billion, two hundred twenty million, three hundred twelve thousand, one hundred twenty-nine".