123211030101 has 16 divisors (see below), whose sum is σ = 177226968384. Its totient is φ = 75850221824.

The previous prime is 123211030093. The next prime is 123211030123. The reversal of 123211030101 is 101030112321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123211030101 - 2³ = 123211030093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123211031101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22788831 + ... + 22794236.

It is an arithmetic number, because the mean of its divisors is an integer number (11076685524).

Almost surely, 2^123211030101 is an apocalyptic number.

It is an amenable number.

123211030101 is a deficient number, since it is larger than the sum of its proper divisors (54015938283).

123211030101 is a wasteful number, since it uses less digits than its factorization.

123211030101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45583140.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 123211030101 its reverse (101030112321), we get a palindrome (224241142422).

The spelling of 123211030101 in words is "one hundred twenty-three billion, two hundred eleven million, thirty thousand, one hundred one".