123021101 has 8 divisors (see below), whose sum is σ = 141180864. Its totient is φ = 105007680.

The previous prime is 123021097. The next prime is 123021121. The reversal of 123021101 is 101120321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123021101 - 2² = 123021097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34775 + ... + 38148.

It is an arithmetic number, because the mean of its divisors is an integer number (17647608).

Almost surely, 2^123021101 is an apocalyptic number.

It is an amenable number.

123021101 is a deficient number, since it is larger than the sum of its proper divisors (18159763).

123021101 is an equidigital number, since it uses as much as digits as its factorization.

123021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73171.

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

The square root of 123021101 is about 11091.4877721611. The cubic root of 123021101 is about 497.3474205297.

Adding to 123021101 its reverse (101120321), we get a palindrome (224141422).

The spelling of 123021101 in words is "one hundred twenty-three million, twenty-one thousand, one hundred one".