123001421152121 has 8 divisors (see below), whose sum is σ = 123141965278464. Its totient is φ = 122860953852400.

The previous prime is 123001421152111. The next prime is 123001421152123. The reversal of 123001421152121 is 121251124100321.

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 123001421152121 - 2¹⁴ = 123001421135737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123001421152123) 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, 16002470 + ... + 22407183.

It is an arithmetic number, because the mean of its divisors is an integer number (15392745659808).

Almost surely, 2^{123001421152121} is an apocalyptic number.

It is an amenable number.

123001421152121 is a deficient number, since it is larger than the sum of its proper divisors (140544126343).

123001421152121 is a wasteful number, since it uses less digits than its factorization.

123001421152121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38413311.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 123001421152121 its reverse (121251124100321), we get a palindrome (244252545252442).

The spelling of 123001421152121 in words is "one hundred twenty-three trillion, one billion, four hundred twenty-one million, one hundred fifty-two thousand, one hundred twenty-one".