123112073 has 4 divisors (see below), whose sum is σ = 140699520. Its totient is φ = 105524628.

The previous prime is 123112063. The next prime is 123112081. The reversal of 123112073 is 370211321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123112073 - 2¹² = 123107977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123112063) 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 in 3 ways as a sum of consecutive naturals, for example, 8793713 + ... + 8793726.

It is an arithmetic number, because the mean of its divisors is an integer number (35174880).

Almost surely, 2^123112073 is an apocalyptic number.

It is an amenable number.

123112073 is a deficient number, since it is larger than the sum of its proper divisors (17587447).

123112073 is an equidigital number, since it uses as much as digits as its factorization.

123112073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17587446.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 123112073 is about 11095.5879970374. The cubic root of 123112073 is about 497.4699836271.

Adding to 123112073 its reverse (370211321), we get a palindrome (493323394).

The spelling of 123112073 in words is "one hundred twenty-three million, one hundred twelve thousand, seventy-three".