123100023021 has 8 divisors (see below), whose sum is σ = 164603661600. Its totient is φ = 81831533232.

The previous prime is 123100022951. The next prime is 123100023031. The reversal of 123100023021 is 120320001321.

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

It is not a de Polignac number, because 123100023021 - 2⁷ = 123100022893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100023031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58785975 + ... + 58788068.

It is an arithmetic number, because the mean of its divisors is an integer number (20575457700).

Almost surely, 2^123100023021 is an apocalyptic number.

It is an amenable number.

123100023021 is a deficient number, since it is larger than the sum of its proper divisors (41503638579).

123100023021 is a wasteful number, since it uses less digits than its factorization.

123100023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117574395.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123100023021 its reverse (120320001321), we get a palindrome (243420024342).

The spelling of 123100023021 in words is "one hundred twenty-three billion, one hundred million, twenty-three thousand, twenty-one".