1371838123 has 2 divisors, whose sum is σ = 1371838124. Its totient is φ = 1371838122.

The previous prime is 1371838109. The next prime is 1371838163. The reversal of 1371838123 is 3218381731.

It is a weak prime.

It is an emirp because it is prime and its reverse (3218381731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1371838123 - 2⁹ = 1371837611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1371838163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685919061 + 685919062.

It is an arithmetic number, because the mean of its divisors is an integer number (685919062).

Almost surely, 2^1371838123 is an apocalyptic number.

1371838123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371838123 is an equidigital number, since it uses as much as digits as its factorization.

1371838123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 1371838123 is about 37038.3331563395. Note that the first 3 decimals coincide. The cubic root of 1371838123 is about 1111.1370333460.

The spelling of 1371838123 in words is "one billion, three hundred seventy-one million, eight hundred thirty-eight thousand, one hundred twenty-three".