421324121044 has 12 divisors (see below), whose sum is σ = 749404379668. Its totient is φ = 207208584000.

The previous prime is 421324121027. The next prime is 421324121063. The reversal of 421324121044 is 440121423124.

It can be written as a sum of positive squares in 2 ways, for example, as 42040581444 + 379283539600 = 205038^2 + 615860^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863368857 + ... + 863369344.

Almost surely, 2^421324121044 is an apocalyptic number.

It is an amenable number.

421324121044 is a deficient number, since it is larger than the sum of its proper divisors (328080258624).

421324121044 is a wasteful number, since it uses less digits than its factorization.

421324121044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726738266 (or 1726738264 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 421324121044 its reverse (440121423124), we get a palindrome (861445544168).

The spelling of 421324121044 in words is "four hundred twenty-one billion, three hundred twenty-four million, one hundred twenty-one thousand, forty-four".