4138123331 has 2 divisors, whose sum is σ = 4138123332. Its totient is φ = 4138123330.

The previous prime is 4138123321. The next prime is 4138123343. The reversal of 4138123331 is 1333218314.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4138123331 - 2¹⁸ = 4137861187 is a prime.

It is a super-2 number, since 2×4138123331² = 34248129405133071122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4138123294 and 4138123303.

It is not a weakly prime, because it can be changed into another prime (4138123321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069061665 + 2069061666.

It is an arithmetic number, because the mean of its divisors is an integer number (2069061666).

Almost surely, 2^4138123331 is an apocalyptic number.

4138123331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138123331 is an equidigital number, since it uses as much as digits as its factorization.

4138123331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 4138123331 is about 64328.2467583254. The cubic root of 4138123331 is about 1605.4661134608.

The spelling of 4138123331 in words is "four billion, one hundred thirty-eight million, one hundred twenty-three thousand, three hundred thirty-one".