20012100259 has 2 divisors, whose sum is σ = 20012100260. Its totient is φ = 20012100258.

The previous prime is 20012100217. The next prime is 20012100263. The reversal of 20012100259 is 95200121002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012100259 - 2²¹ = 20010003107 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012100289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006050129 + 10006050130.

It is an arithmetic number, because the mean of its divisors is an integer number (10006050130).

Almost surely, 2^20012100259 is an apocalyptic number.

20012100259 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012100259 is an equidigital number, since it uses as much as digits as its factorization.

20012100259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The spelling of 20012100259 in words is "twenty billion, twelve million, one hundred thousand, two hundred fifty-nine".