20223021010993 has 2 divisors, whose sum is σ = 20223021010994. Its totient is φ = 20223021010992.

The previous prime is 20223021010979. The next prime is 20223021011071. The reversal of 20223021010993 is 39901012032202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17852754463504 + 2370266547489 = 4225252^2 + 1539567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20223021010993 is a prime.

It is a super-2 number, since 2×20223021010993² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20223021010903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111510505496 + 10111510505497.

It is an arithmetic number, because the mean of its divisors is an integer number (10111510505497).

Almost surely, 2^{20223021010993} is an apocalyptic number.

It is an amenable number.

20223021010993 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223021010993 is an equidigital number, since it uses as much as digits as its factorization.

20223021010993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 20223021010993 in words is "twenty trillion, two hundred twenty-three billion, twenty-one million, ten thousand, nine hundred ninety-three".