421213304031 has 48 divisors (see below), whose sum is σ = 611098822656. Its totient is φ = 256539172032.

The previous prime is 421213303949. The next prime is 421213304041. The reversal of 421213304031 is 130403312124.

It is a happy number.

It is not a de Polignac number, because 421213304031 - 2⁹ = 421213303519 is a prime.

It is a super-2 number, since 2×421213304031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421213303992 and 421213304010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421213304041) 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 47 ways as a sum of consecutive naturals, for example, 344409286 + ... + 344410508.

It is an arithmetic number, because the mean of its divisors is an integer number (12731225472).

Almost surely, 2^421213304031 is an apocalyptic number.

421213304031 is a deficient number, since it is larger than the sum of its proper divisors (189885518625).

421213304031 is a wasteful number, since it uses less digits than its factorization.

421213304031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 421213304031 its reverse (130403312124), we get a palindrome (551616616155).

The spelling of 421213304031 in words is "four hundred twenty-one billion, two hundred thirteen million, three hundred four thousand, thirty-one".