8120124013 has 2 divisors, whose sum is σ = 8120124014. Its totient is φ = 8120124012.

The previous prime is 8120123989. The next prime is 8120124017. The reversal of 8120124013 is 3104210218.

It is a happy number.

8120124013 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7885972809 + 234151204 = 88803^2 + 15302^2 .

It is a cyclic number.

It is not a de Polignac number, because 8120124013 - 2⁵ = 8120123981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8120124017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060062006 + 4060062007.

It is an arithmetic number, because the mean of its divisors is an integer number (4060062007).

Almost surely, 2^8120124013 is an apocalyptic number.

It is an amenable number.

8120124013 is a deficient number, since it is larger than the sum of its proper divisors (1).

8120124013 is an equidigital number, since it uses as much as digits as its factorization.

8120124013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 8120124013 is about 90111.7307180369. The cubic root of 8120124013 is about 2009.9606448405.

The spelling of 8120124013 in words is "eight billion, one hundred twenty million, one hundred twenty-four thousand, thirteen".