30623123 has 2 divisors, whose sum is σ = 30623124. Its totient is φ = 30623122.

The previous prime is 30623111. The next prime is 30623149. The reversal of 30623123 is 32132603.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30623123 - 2⁴ = 30623107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30623095 and 30623104.

It is not a weakly prime, because it can be changed into another prime (30625123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15311561 + 15311562.

It is an arithmetic number, because the mean of its divisors is an integer number (15311562).

Almost surely, 2^30623123 is an apocalyptic number.

30623123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30623123 is an equidigital number, since it uses as much as digits as its factorization.

30623123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 30623123 is about 5533.8163142627. The cubic root of 30623123 is about 312.8598453173.

Adding to 30623123 its reverse (32132603), we get a palindrome (62755726).

The spelling of 30623123 in words is "thirty million, six hundred twenty-three thousand, one hundred twenty-three".