1383840023 has 2 divisors, whose sum is σ = 1383840024. Its totient is φ = 1383840022.

The previous prime is 1383839981. The next prime is 1383840041. The reversal of 1383840023 is 3200483831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1383840023 - 2²⁸ = 1115404567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1383848023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691920011 + 691920012.

It is an arithmetic number, because the mean of its divisors is an integer number (691920012).

Almost surely, 2^1383840023 is an apocalyptic number.

1383840023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383840023 is an equidigital number, since it uses as much as digits as its factorization.

1383840023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1383840023 is about 37200.0003091398. Note that the first 3 decimals coincide. The cubic root of 1383840023 is about 1114.3679910827.

The spelling of 1383840023 in words is "one billion, three hundred eighty-three million, eight hundred forty thousand, twenty-three".