123121233101 has 8 divisors (see below), whose sum is σ = 123227285184. Its totient is φ = 123015231360.

The previous prime is 123121233029. The next prime is 123121233107. The reversal of 123121233101 is 101332121321.

It is a happy number.

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 123121233101 - 2¹⁰ = 123121232077 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 (123121233107) 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, 6075656 + ... + 6095886.

It is an arithmetic number, because the mean of its divisors is an integer number (15403410648).

Almost surely, 2^123121233101 is an apocalyptic number.

It is an amenable number.

123121233101 is a deficient number, since it is larger than the sum of its proper divisors (106052083).

123121233101 is a wasteful number, since it uses less digits than its factorization.

123121233101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25171.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 123121233101 its reverse (101332121321), we get a palindrome (224453354422).

The spelling of 123121233101 in words is "one hundred twenty-three billion, one hundred twenty-one million, two hundred thirty-three thousand, one hundred one".