120123101 has 4 divisors (see below), whose sum is σ = 137283552. Its totient is φ = 102962652.

The previous prime is 120123079. The next prime is 120123103. The reversal of 120123101 is 101321021.

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 a de Polignac number, because none of the positive numbers 2^k-120123101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120123103) 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 in 3 ways as a sum of consecutive naturals, for example, 8580215 + ... + 8580228.

It is an arithmetic number, because the mean of its divisors is an integer number (34320888).

Almost surely, 2^120123101 is an apocalyptic number.

It is an amenable number.

120123101 is a deficient number, since it is larger than the sum of its proper divisors (17160451).

120123101 is an equidigital number, since it uses as much as digits as its factorization.

120123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17160450.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 120123101 is about 10960.0684760635. The cubic root of 120123101 is about 493.4110200988.

Adding to 120123101 its reverse (101321021), we get a palindrome (221444122).

The spelling of 120123101 in words is "one hundred twenty million, one hundred twenty-three thousand, one hundred one".