3031020409 has 2 divisors, whose sum is σ = 3031020410. Its totient is φ = 3031020408.

The previous prime is 3031020383. The next prime is 3031020439. The reversal of 3031020409 is 9040201303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3024670009 + 6350400 = 54997^2 + 2520^2 .

It is a cyclic number.

It is not a de Polignac number, because 3031020409 - 2¹³ = 3031012217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3031020409.

It is not a weakly prime, because it can be changed into another prime (3031020439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515510204 + 1515510205.

It is an arithmetic number, because the mean of its divisors is an integer number (1515510205).

Almost surely, 2^3031020409 is an apocalyptic number.

It is an amenable number.

3031020409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3031020409 is an equidigital number, since it uses as much as digits as its factorization.

3031020409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3031020409 is about 55054.7037863251. The cubic root of 3031020409 is about 1447.2035534484.

The spelling of 3031020409 in words is "three billion, thirty-one million, twenty thousand, four hundred nine".