3122134721 has 2 divisors, whose sum is σ = 3122134722. Its totient is φ = 3122134720.

The previous prime is 3122134709. The next prime is 3122134733. The reversal of 3122134721 is 1274312213.

It is a balanced prime because it is at equal distance from previous prime (3122134709) and next prime (3122134733).

It can be written as a sum of positive squares in only one way, i.e., 2105800321 + 1016334400 = 45889^2 + 31880^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122134721 - 2⁶ = 3122134657 is a prime.

It is not a weakly prime, because it can be changed into another prime (3122134021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561067360 + 1561067361.

It is an arithmetic number, because the mean of its divisors is an integer number (1561067361).

Almost surely, 2^3122134721 is an apocalyptic number.

It is an amenable number.

3122134721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122134721 is an equidigital number, since it uses as much as digits as its factorization.

3122134721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 3122134721 is about 55876.0657258544. The cubic root of 3122134721 is about 1461.5618990515.

Adding to 3122134721 its reverse (1274312213), we get a palindrome (4396446934).

The spelling of 3122134721 in words is "three billion, one hundred twenty-two million, one hundred thirty-four thousand, seven hundred twenty-one".