20122310849 has 2 divisors, whose sum is σ = 20122310850. Its totient is φ = 20122310848.

The previous prime is 20122310821. The next prime is 20122311031. The reversal of 20122310849 is 94801322102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18970930225 + 1151380624 = 137735^2 + 33932^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122310849 - 2¹² = 20122306753 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122310749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061155424 + 10061155425.

It is an arithmetic number, because the mean of its divisors is an integer number (10061155425).

Almost surely, 2^20122310849 is an apocalyptic number.

It is an amenable number.

20122310849 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122310849 is an equidigital number, since it uses as much as digits as its factorization.

20122310849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 20122310849 in words is "twenty billion, one hundred twenty-two million, three hundred ten thousand, eight hundred forty-nine".