10120890049 has 2 divisors, whose sum is σ = 10120890050. Its totient is φ = 10120890048.

The previous prime is 10120890047. The next prime is 10120890067. The reversal of 10120890049 is 94009802101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6485403024 + 3635487025 = 80532^2 + 60295^2 .

It is an emirp because it is prime and its reverse (94009802101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10120890049 - 2¹ = 10120890047 is a prime.

Together with 10120890047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10120889996 and 10120890023.

It is not a weakly prime, because it can be changed into another prime (10120890047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060445024 + 5060445025.

It is an arithmetic number, because the mean of its divisors is an integer number (5060445025).

Almost surely, 2^10120890049 is an apocalyptic number.

It is an amenable number.

10120890049 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120890049 is an equidigital number, since it uses as much as digits as its factorization.

10120890049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 10120890049 in words is "ten billion, one hundred twenty million, eight hundred ninety thousand, forty-nine".