421015343453 has 16 divisors (see below), whose sum is σ = 449283096000. Its totient is φ = 393381090432.

The previous prime is 421015343449. The next prime is 421015343467. The reversal of 421015343453 is 354343510124.

It is a cyclic number.

It is not a de Polignac number, because 421015343453 - 2² = 421015343449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421015343423) 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, 357758 + ... + 984896.

It is an arithmetic number, because the mean of its divisors is an integer number (28080193500).

Almost surely, 2^421015343453 is an apocalyptic number.

It is an amenable number.

421015343453 is a deficient number, since it is larger than the sum of its proper divisors (28267752547).

421015343453 is a wasteful number, since it uses less digits than its factorization.

421015343453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627644.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 421015343453 its reverse (354343510124), we get a palindrome (775358853577).

The spelling of 421015343453 in words is "four hundred twenty-one billion, fifteen million, three hundred forty-three thousand, four hundred fifty-three".