120305623 has 2 divisors, whose sum is σ = 120305624. Its totient is φ = 120305622.

The previous prime is 120305561. The next prime is 120305629. The reversal of 120305623 is 326503021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120305623 - 2²⁵ = 86751191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120305594 and 120305603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120305629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60152811 + 60152812.

It is an arithmetic number, because the mean of its divisors is an integer number (60152812).

Almost surely, 2^120305623 is an apocalyptic number.

120305623 is a deficient number, since it is larger than the sum of its proper divisors (1).

120305623 is an equidigital number, since it uses as much as digits as its factorization.

120305623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 120305623 is about 10968.3919970067. The cubic root of 120305623 is about 493.6607993964.

Adding to 120305623 its reverse (326503021), we get a palindrome (446808644).

The spelling of 120305623 in words is "one hundred twenty million, three hundred five thousand, six hundred twenty-three".