20223232318997 has 2 divisors, whose sum is σ = 20223232318998. Its totient is φ = 20223232318996.

The previous prime is 20223232318967. The next prime is 20223232319009. The reversal of 20223232318997 is 79981323232202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15745611269476 + 4477621049521 = 3968074^2 + 2116039^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223232318997 - 2¹⁰ = 20223232317973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20223232318957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111616159498 + 10111616159499.

It is an arithmetic number, because the mean of its divisors is an integer number (10111616159499).

Almost surely, 2^{20223232318997} is an apocalyptic number.

It is an amenable number.

20223232318997 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223232318997 is an equidigital number, since it uses as much as digits as its factorization.

20223232318997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 20223232318997 in words is "twenty trillion, two hundred twenty-three billion, two hundred thirty-two million, three hundred eighteen thousand, nine hundred ninety-seven".