120101000123 has 4 divisors (see below), whose sum is σ = 129339538608. Its totient is φ = 110862461640.

The previous prime is 120101000119. The next prime is 120101000143. The reversal of 120101000123 is 321000101021.

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 120101000123 - 2² = 120101000119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120101000143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4619269223 + ... + 4619269248.

It is an arithmetic number, because the mean of its divisors is an integer number (32334884652).

Almost surely, 2^120101000123 is an apocalyptic number.

120101000123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120101000123 is a deficient number, since it is larger than the sum of its proper divisors (9238538485).

120101000123 is an equidigital number, since it uses as much as digits as its factorization.

120101000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9238538484.

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

Adding to 120101000123 its reverse (321000101021), we get a palindrome (441101101144).

The spelling of 120101000123 in words is "one hundred twenty billion, one hundred one million, one hundred twenty-three", and thus it is an aban number.