20306725223 has 2 divisors, whose sum is σ = 20306725224. Its totient is φ = 20306725222.

The previous prime is 20306725193. The next prime is 20306725237. The reversal of 20306725223 is 32252760302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20306725223 - 2⁸ = 20306724967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20306725223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20306725273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10153362611 + 10153362612.

It is an arithmetic number, because the mean of its divisors is an integer number (10153362612).

Almost surely, 2^20306725223 is an apocalyptic number.

20306725223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20306725223 is an equidigital number, since it uses as much as digits as its factorization.

20306725223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 20306725223 in words is "twenty billion, three hundred six million, seven hundred twenty-five thousand, two hundred twenty-three".