2023311397 has 2 divisors, whose sum is σ = 2023311398. Its totient is φ = 2023311396.

The previous prime is 2023311391. The next prime is 2023311421. The reversal of 2023311397 is 7931133202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1014677316 + 1008634081 = 31854^2 + 31759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2023311397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2023311391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011655698 + 1011655699.

It is an arithmetic number, because the mean of its divisors is an integer number (1011655699).

Almost surely, 2^2023311397 is an apocalyptic number.

It is an amenable number.

2023311397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023311397 is an equidigital number, since it uses as much as digits as its factorization.

2023311397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 2023311397 is about 44981.2338314546. The cubic root of 2023311397 is about 1264.7972401777.

Adding to 2023311397 its reverse (7931133202), we get a palindrome (9954444599).

The spelling of 2023311397 in words is "two billion, twenty-three million, three hundred eleven thousand, three hundred ninety-seven".