20223329993 has 2 divisors, whose sum is σ = 20223329994. Its totient is φ = 20223329992.

The previous prime is 20223329981. The next prime is 20223330007. The reversal of 20223329993 is 39992332202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14615117449 + 5608212544 = 120893^2 + 74888^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223329993 - 2²⁸ = 19954894537 is a prime.

It is not a weakly prime, because it can be changed into another prime (20223329593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111664996 + 10111664997.

It is an arithmetic number, because the mean of its divisors is an integer number (10111664997).

Almost surely, 2^20223329993 is an apocalyptic number.

It is an amenable number.

20223329993 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223329993 is an equidigital number, since it uses as much as digits as its factorization.

20223329993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 44.

The spelling of 20223329993 in words is "twenty billion, two hundred twenty-three million, three hundred twenty-nine thousand, nine hundred ninety-three".