101230123 has 4 divisors (see below), whose sum is σ = 101653920. Its totient is φ = 100806328.

The previous prime is 101230117. The next prime is 101230133. The reversal of 101230123 is 321032101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101230123 - 2⁵ = 101230091 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101230133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211540 + ... + 212017.

It is an arithmetic number, because the mean of its divisors is an integer number (25413480).

Almost surely, 2^101230123 is an apocalyptic number.

101230123 is a deficient number, since it is larger than the sum of its proper divisors (423797).

101230123 is an equidigital number, since it uses as much as digits as its factorization.

101230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423796.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 101230123 is about 10061.3181541983. The cubic root of 101230123 is about 466.0543739165.

Adding to 101230123 its reverse (321032101), we get a palindrome (422262224).

The spelling of 101230123 in words is "one hundred one million, two hundred thirty thousand, one hundred twenty-three".