712420123 has 2 divisors, whose sum is σ = 712420124. Its totient is φ = 712420122.

The previous prime is 712420097. The next prime is 712420127. The reversal of 712420123 is 321024217.

It is a strong prime.

It is an emirp because it is prime and its reverse (321024217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 712420123 - 2⁵ = 712420091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 712420094 and 712420103.

It is not a weakly prime, because it can be changed into another prime (712420127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356210061 + 356210062.

It is an arithmetic number, because the mean of its divisors is an integer number (356210062).

Almost surely, 2^712420123 is an apocalyptic number.

712420123 is a deficient number, since it is larger than the sum of its proper divisors (1).

712420123 is an equidigital number, since it uses as much as digits as its factorization.

712420123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 712420123 is about 26691.1993548435. The cubic root of 712420123 is about 893.1246158670.

The spelling of 712420123 in words is "seven hundred twelve million, four hundred twenty thousand, one hundred twenty-three".