123000101421 has 4 divisors (see below), whose sum is σ = 164000135232. Its totient is φ = 82000067612.

The previous prime is 123000101369. The next prime is 123000101429. The reversal of 123000101421 is 124101000321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123000101421 - 2¹⁰ = 123000100397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123000101421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123000101429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20500016901 + ... + 20500016906.

It is an arithmetic number, because the mean of its divisors is an integer number (41000033808).

Almost surely, 2^123000101421 is an apocalyptic number.

It is an amenable number.

123000101421 is a deficient number, since it is larger than the sum of its proper divisors (41000033811).

123000101421 is an equidigital number, since it uses as much as digits as its factorization.

123000101421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41000033810.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 123000101421 its reverse (124101000321), we get a palindrome (247101101742).

The spelling of 123000101421 in words is "one hundred twenty-three billion, one hundred one thousand, four hundred twenty-one".