13420723 has 2 divisors, whose sum is σ = 13420724. Its totient is φ = 13420722.

The previous prime is 13420699. The next prime is 13420727. The reversal of 13420723 is 32702431.

13420723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13420723 - 2⁵ = 13420691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13420694 and 13420703.

It is not a weakly prime, because it can be changed into another prime (13420727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710361 + 6710362.

It is an arithmetic number, because the mean of its divisors is an integer number (6710362).

Almost surely, 2^13420723 is an apocalyptic number.

13420723 is a deficient number, since it is larger than the sum of its proper divisors (1).

13420723 is an equidigital number, since it uses as much as digits as its factorization.

13420723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 13420723 is about 3663.4304961334. The cubic root of 13420723 is about 237.6431521102.

The spelling of 13420723 in words is "thirteen million, four hundred twenty thousand, seven hundred twenty-three".