20280323201 has 2 divisors, whose sum is σ = 20280323202. Its totient is φ = 20280323200.

The previous prime is 20280323177. The next prime is 20280323263. The reversal of 20280323201 is 10232308202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20277760000 + 2563201 = 142400^2 + 1601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20280323201 is a prime.

It is a super-2 number, since 2×20280323201² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20280320201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10140161600 + 10140161601.

It is an arithmetic number, because the mean of its divisors is an integer number (10140161601).

Almost surely, 2^20280323201 is an apocalyptic number.

It is an amenable number.

20280323201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20280323201 is an equidigital number, since it uses as much as digits as its factorization.

20280323201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The spelling of 20280323201 in words is "twenty billion, two hundred eighty million, three hundred twenty-three thousand, two hundred one".