2938778123 has 2 divisors, whose sum is σ = 2938778124. Its totient is φ = 2938778122.

The previous prime is 2938778099. The next prime is 2938778147. The reversal of 2938778123 is 3218778392.

It is a balanced prime because it is at equal distance from previous prime (2938778099) and next prime (2938778147).

It is a cyclic number.

It is not a de Polignac number, because 2938778123 - 2¹⁶ = 2938712587 is a prime.

It is a super-3 number, since 3×2938778123³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2938778153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1469389061 + 1469389062.

It is an arithmetic number, because the mean of its divisors is an integer number (1469389062).

Almost surely, 2^2938778123 is an apocalyptic number.

2938778123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2938778123 is an equidigital number, since it uses as much as digits as its factorization.

2938778123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 50.

The square root of 2938778123 is about 54210.4982729360. The cubic root of 2938778123 is about 1432.3712630569.

The spelling of 2938778123 in words is "two billion, nine hundred thirty-eight million, seven hundred seventy-eight thousand, one hundred twenty-three".