10421120123 has 8 divisors (see below), whose sum is σ = 10451690496. Its totient is φ = 10390580200.

The previous prime is 10421120081. The next prime is 10421120131. The reversal of 10421120123 is 32102112401.

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 10421120123 - 2¹⁰ = 10421119099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10421125123) 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, 799940 + ... + 812862.

It is an arithmetic number, because the mean of its divisors is an integer number (1306461312).

Almost surely, 2^10421120123 is an apocalyptic number.

10421120123 is a deficient number, since it is larger than the sum of its proper divisors (30570373).

10421120123 is a wasteful number, since it uses less digits than its factorization.

10421120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15225.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10421120123 its reverse (32102112401), we get a palindrome (42523232524).

The spelling of 10421120123 in words is "ten billion, four hundred twenty-one million, one hundred twenty thousand, one hundred twenty-three".