100321320293 has 2 divisors, whose sum is σ = 100321320294. Its totient is φ = 100321320292.

The previous prime is 100321320217. The next prime is 100321320347. The reversal of 100321320293 is 392023123001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70688452129 + 29632868164 = 265873^2 + 172142^2 .

It is a cyclic number.

It is not a de Polignac number, because 100321320293 - 2¹⁰ = 100321319269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100321329293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50160660146 + 50160660147.

It is an arithmetic number, because the mean of its divisors is an integer number (50160660147).

Almost surely, 2^100321320293 is an apocalyptic number.

It is an amenable number.

100321320293 is a deficient number, since it is larger than the sum of its proper divisors (1).

100321320293 is an equidigital number, since it uses as much as digits as its factorization.

100321320293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 100321320293 its reverse (392023123001), we get a palindrome (492344443294).

The spelling of 100321320293 in words is "one hundred billion, three hundred twenty-one million, three hundred twenty thousand, two hundred ninety-three".