421301321123 has 8 divisors (see below), whose sum is σ = 422239295520. Its totient is φ = 420364391040.

The previous prime is 421301321087. The next prime is 421301321179. The reversal of 421301321123 is 321123103124.

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 421301321123 - 2¹² = 421301317027 is a prime.

It is a super-2 number, since 2×421301321123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421301321323) 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, 549461 + ... + 1069817.

It is an arithmetic number, because the mean of its divisors is an integer number (52779911940).

Almost surely, 2^421301321123 is an apocalyptic number.

421301321123 is a deficient number, since it is larger than the sum of its proper divisors (937974397).

421301321123 is an equidigital number, since it uses as much as digits as its factorization.

421301321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522157.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 421301321123 its reverse (321123103124), we get a palindrome (742424424247).

The spelling of 421301321123 in words is "four hundred twenty-one billion, three hundred one million, three hundred twenty-one thousand, one hundred twenty-three".