23203202317 has 2 divisors, whose sum is σ = 23203202318. Its totient is φ = 23203202316.

The previous prime is 23203202291. The next prime is 23203202329. The reversal of 23203202317 is 71320230232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19125230436 + 4077971881 = 138294^2 + 63859^2 .

It is a cyclic number.

It is not a de Polignac number, because 23203202317 - 2³¹ = 21055718669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23203202291 and 23203202300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23203232317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601601158 + 11601601159.

It is an arithmetic number, because the mean of its divisors is an integer number (11601601159).

Almost surely, 2^23203202317 is an apocalyptic number.

It is an amenable number.

23203202317 is a deficient number, since it is larger than the sum of its proper divisors (1).

23203202317 is an equidigital number, since it uses as much as digits as its factorization.

23203202317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

Adding to 23203202317 its reverse (71320230232), we get a palindrome (94523432549).

The spelling of 23203202317 in words is "twenty-three billion, two hundred three million, two hundred two thousand, three hundred seventeen".