3220840123 has 2 divisors, whose sum is σ = 3220840124. Its totient is φ = 3220840122.

The previous prime is 3220840109. The next prime is 3220840153. The reversal of 3220840123 is 3210480223.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3220840123 is a prime.

It is a super-2 number, since 2×3220840123² = 20747622195853310258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3220840153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610420061 + 1610420062.

It is an arithmetic number, because the mean of its divisors is an integer number (1610420062).

Almost surely, 2^3220840123 is an apocalyptic number.

3220840123 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220840123 is an equidigital number, since it uses as much as digits as its factorization.

3220840123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 3220840123 is about 56752.4459649097. The cubic root of 3220840123 is about 1476.8046661984.

The spelling of 3220840123 in words is "three billion, two hundred twenty million, eight hundred forty thousand, one hundred twenty-three".