421140421001 has 8 divisors (see below), whose sum is σ = 453626709504. Its totient is φ = 389835452160.

The previous prime is 421140420979. The next prime is 421140421019. The reversal of 421140421001 is 100124041124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421140421001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421140421081) 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 7 ways as a sum of consecutive naturals, for example, 295329176 + ... + 295330601.

It is an arithmetic number, because the mean of its divisors is an integer number (56703338688).

Almost surely, 2^421140421001 is an apocalyptic number.

It is an amenable number.

421140421001 is a deficient number, since it is larger than the sum of its proper divisors (32486288503).

421140421001 is a wasteful number, since it uses less digits than its factorization.

421140421001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590659831.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 421140421001 its reverse (100124041124), we get a palindrome (521264462125).

The spelling of 421140421001 in words is "four hundred twenty-one billion, one hundred forty million, four hundred twenty-one thousand, one".