20100230317 has 2 divisors, whose sum is σ = 20100230318. Its totient is φ = 20100230316.

The previous prime is 20100230299. The next prime is 20100230329. The reversal of 20100230317 is 71303200102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13646678761 + 6453551556 = 116819^2 + 80334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100230317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20100230294 and 20100230303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20100231317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050115158 + 10050115159.

It is an arithmetic number, because the mean of its divisors is an integer number (10050115159).

Almost surely, 2^20100230317 is an apocalyptic number.

It is an amenable number.

20100230317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100230317 is an equidigital number, since it uses as much as digits as its factorization.

20100230317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

Adding to 20100230317 its reverse (71303200102), we get a palindrome (91403430419).

The spelling of 20100230317 in words is "twenty billion, one hundred million, two hundred thirty thousand, three hundred seventeen".