20326156303 has 2 divisors, whose sum is σ = 20326156304. Its totient is φ = 20326156302.

The previous prime is 20326156273. The next prime is 20326156381. The reversal of 20326156303 is 30365162302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20326156303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323156303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10163078151 + 10163078152.

It is an arithmetic number, because the mean of its divisors is an integer number (10163078152).

Almost surely, 2^20326156303 is an apocalyptic number.

20326156303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20326156303 is an equidigital number, since it uses as much as digits as its factorization.

20326156303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

The spelling of 20326156303 in words is "twenty billion, three hundred twenty-six million, one hundred fifty-six thousand, three hundred three".