421323121323124 has 24 divisors (see below), whose sum is σ = 745769017110600. Its totient is φ = 208247333015040.

The previous prime is 421323121323079. The next prime is 421323121323127.

421323121323124 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 25369555712400 + 395953565610724 = 5036820^2 + 19898582^2 .

It is a super-2 number, since 2×421323121323124² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421323121323124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421323121323127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132643587 + ... + 135782794.

It is an arithmetic number, because the mean of its divisors is an integer number (31073709046275).

Almost surely, 2^{421323121323124} is an apocalyptic number.

It is an amenable number.

421323121323124 is a deficient number, since it is larger than the sum of its proper divisors (324445895787476).

421323121323124 is a wasteful number, since it uses less digits than its factorization.

421323121323124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268430883 (or 268430881 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The spelling of 421323121323124 in words is "four hundred twenty-one trillion, three hundred twenty-three billion, one hundred twenty-one million, three hundred twenty-three thousand, one hundred twenty-four".