421124003421 has 32 divisors (see below), whose sum is σ = 613773628416. Its totient is φ = 254714880000.

The previous prime is 421124003341. The next prime is 421124003449. The reversal of 421124003421 is 124300421124.

It is not a de Polignac number, because 421124003421 - 2¹⁵ = 421123970653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421124003391 and 421124003400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421124003471) 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 31 ways as a sum of consecutive naturals, for example, 35752285 + ... + 35764061.

It is an arithmetic number, because the mean of its divisors is an integer number (19180425888).

Almost surely, 2^421124003421 is an apocalyptic number.

It is an amenable number.

421124003421 is a deficient number, since it is larger than the sum of its proper divisors (192649624995).

421124003421 is a wasteful number, since it uses less digits than its factorization.

421124003421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13873.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 421124003421 its reverse (124300421124), we get a palindrome (545424424545).

The spelling of 421124003421 in words is "four hundred twenty-one billion, one hundred twenty-four million, three thousand, four hundred twenty-one".