8121726103 has 2 divisors, whose sum is σ = 8121726104. Its totient is φ = 8121726102.

The previous prime is 8121726091. The next prime is 8121726127. The reversal of 8121726103 is 3016271218.

8121726103 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8121726103 - 2²⁵ = 8088171671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8121726803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060863051 + 4060863052.

It is an arithmetic number, because the mean of its divisors is an integer number (4060863052).

Almost surely, 2^8121726103 is an apocalyptic number.

8121726103 is a deficient number, since it is larger than the sum of its proper divisors (1).

8121726103 is an equidigital number, since it uses as much as digits as its factorization.

8121726103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 8121726103 is about 90120.6197437634. The cubic root of 8121726103 is about 2010.0928236961.

The spelling of 8121726103 in words is "eight billion, one hundred twenty-one million, seven hundred twenty-six thousand, one hundred three".