2023121393 has 2 divisors, whose sum is σ = 2023121394. Its totient is φ = 2023121392.

The previous prime is 2023121381. The next prime is 2023121447. The reversal of 2023121393 is 3931213202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1572281104 + 450840289 = 39652^2 + 21233^2 .

It is a cyclic number.

It is not a de Polignac number, because 2023121393 - 2⁸ = 2023121137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2023121323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011560696 + 1011560697.

It is an arithmetic number, because the mean of its divisors is an integer number (1011560697).

Almost surely, 2^2023121393 is an apocalyptic number.

It is an amenable number.

2023121393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023121393 is an equidigital number, since it uses as much as digits as its factorization.

2023121393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 2023121393 is about 44979.1217455388. The cubic root of 2023121393 is about 1264.7576476467.

Adding to 2023121393 its reverse (3931213202), we get a palindrome (5954334595).

The spelling of 2023121393 in words is "two billion, twenty-three million, one hundred twenty-one thousand, three hundred ninety-three".