123210101 has 8 divisors (see below), whose sum is σ = 149094720. Its totient is φ = 99396288.

The previous prime is 123210091. The next prime is 123210121. The reversal of 123210101 is 101012321.

123210101 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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 123210101 - 2¹⁴ = 123193717 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123210121) 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 7 ways as a sum of consecutive naturals, for example, 517571 + ... + 517808.

It is an arithmetic number, because the mean of its divisors is an integer number (18636840).

Almost surely, 2^123210101 is an apocalyptic number.

It is an amenable number.

123210101 is a deficient number, since it is larger than the sum of its proper divisors (25884619).

123210101 is a wasteful number, since it uses less digits than its factorization.

123210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035403.

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

The square root of 123210101 is about 11100.0045495486. The cubic root of 123210101 is about 497.6019854386.

Adding to 123210101 its reverse (101012321), we get a palindrome (224222422).

The spelling of 123210101 in words is "one hundred twenty-three million, two hundred ten thousand, one hundred one".