213042421001 has 16 divisors (see below), whose sum is σ = 220951313088. Its totient is φ = 205282728000.

The previous prime is 213042420979. The next prime is 213042421061. The reversal of 213042421001 is 100124240312.

It is a cyclic number.

It is not a de Polignac number, because 213042421001 - 2⁶ = 213042420937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213042421061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1114466 + ... + 1291556.

It is an arithmetic number, because the mean of its divisors is an integer number (13809457068).

Almost surely, 2^213042421001 is an apocalyptic number.

It is an amenable number.

213042421001 is a deficient number, since it is larger than the sum of its proper divisors (7908892087).

213042421001 is a wasteful number, since it uses less digits than its factorization.

213042421001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177512.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 213042421001 its reverse (100124240312), we get a palindrome (313166661313).

The spelling of 213042421001 in words is "two hundred thirteen billion, forty-two million, four hundred twenty-one thousand, one".