20018350207 has 2 divisors, whose sum is σ = 20018350208. Its totient is φ = 20018350206.

The previous prime is 20018350181. The next prime is 20018350229. The reversal of 20018350207 is 70205381002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20018350207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20018350267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10009175103 + 10009175104.

It is an arithmetic number, because the mean of its divisors is an integer number (10009175104).

Almost surely, 2^20018350207 is an apocalyptic number.

20018350207 is a deficient number, since it is larger than the sum of its proper divisors (1).

20018350207 is an equidigital number, since it uses as much as digits as its factorization.

20018350207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 20018350207 in words is "twenty billion, eighteen million, three hundred fifty thousand, two hundred seven".