1238316823 has 2 divisors, whose sum is σ = 1238316824. Its totient is φ = 1238316822.

The previous prime is 1238316817. The next prime is 1238316829. The reversal of 1238316823 is 3286138321.

It is a balanced prime because it is at equal distance from previous prime (1238316817) and next prime (1238316829).

It is a cyclic number.

It is not a de Polignac number, because 1238316823 - 2²⁹ = 701445911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1238316829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619158411 + 619158412.

It is an arithmetic number, because the mean of its divisors is an integer number (619158412).

Almost surely, 2^1238316823 is an apocalyptic number.

1238316823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238316823 is an equidigital number, since it uses as much as digits as its factorization.

1238316823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 1238316823 is about 35189.7261000992. The cubic root of 1238316823 is about 1073.8507488757.

The spelling of 1238316823 in words is "one billion, two hundred thirty-eight million, three hundred sixteen thousand, eight hundred twenty-three".