220923798013 has 2 divisors, whose sum is σ = 220923798014. Its totient is φ = 220923798012.

The previous prime is 220923797987. The next prime is 220923798071. The reversal of 220923798013 is 310897329022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217251074404 + 3672723609 = 466102^2 + 60603^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220923798013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220923798313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110461899006 + 110461899007.

It is an arithmetic number, because the mean of its divisors is an integer number (110461899007).

Almost surely, 2^220923798013 is an apocalyptic number.

It is an amenable number.

220923798013 is a deficient number, since it is larger than the sum of its proper divisors (1).

220923798013 is an equidigital number, since it uses as much as digits as its factorization.

220923798013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 220923798013 in words is "two hundred twenty billion, nine hundred twenty-three million, seven hundred ninety-eight thousand, thirteen".