421002143443333 has 16 divisors (see below), whose sum is σ = 428478859972800. Its totient is φ = 413536814454400.

The previous prime is 421002143443243. The next prime is 421002143443363. The reversal of 421002143443333 is 333344341200124.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421002143443333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421002143443292 and 421002143443301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421002143443363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4328621658 + ... + 4328718916.

It is an arithmetic number, because the mean of its divisors is an integer number (26779928748300).

Almost surely, 2^{421002143443333} is an apocalyptic number.

It is an amenable number.

421002143443333 is a deficient number, since it is larger than the sum of its proper divisors (7476716529467).

421002143443333 is a wasteful number, since it uses less digits than its factorization.

421002143443333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155012.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 421002143443333 its reverse (333344341200124), we get a palindrome (754346484643457).

The spelling of 421002143443333 in words is "four hundred twenty-one trillion, two billion, one hundred forty-three million, four hundred forty-three thousand, three hundred thirty-three".