20200223021317 has 2 divisors, whose sum is σ = 20200223021318. Its totient is φ = 20200223021316.

The previous prime is 20200223021309. The next prime is 20200223021339. The reversal of 20200223021317 is 71312032200202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16507392059041 + 3692830962276 = 4062929^2 + 1921674^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200223021317 - 2³ = 20200223021309 is a prime.

It is a super-2 number, since 2×20200223021317² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20200223021291 and 20200223021300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200223021117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100111510658 + 10100111510659.

It is an arithmetic number, because the mean of its divisors is an integer number (10100111510659).

Almost surely, 2^{20200223021317} is an apocalyptic number.

It is an amenable number.

20200223021317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200223021317 is an equidigital number, since it uses as much as digits as its factorization.

20200223021317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 20200223021317 its reverse (71312032200202), we get a palindrome (91512255221519).

The spelling of 20200223021317 in words is "twenty trillion, two hundred billion, two hundred twenty-three million, twenty-one thousand, three hundred seventeen".