421453252303423 has 8 divisors (see below), whose sum is σ = 431344579615488. Its totient is φ = 411566019940824.

The previous prime is 421453252303409. The next prime is 421453252303429. The reversal of 421453252303423 is 324303252354124.

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

It is a cyclic number.

It is not a de Polignac number, because 421453252303423 - 2³³ = 421444662368831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421453252303423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421453252303429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1023529111 + ... + 1023940792.

It is an arithmetic number, because the mean of its divisors is an integer number (53918072451936).

Almost surely, 2^{421453252303423} is an apocalyptic number.

421453252303423 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

421453252303423 is a deficient number, since it is larger than the sum of its proper divisors (9891327312065).

421453252303423 is a wasteful number, since it uses less digits than its factorization.

421453252303423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047474733.

The product of its (nonzero) digits is 2073600, while the sum is 43.

The spelling of 421453252303423 in words is "four hundred twenty-one trillion, four hundred fifty-three billion, two hundred fifty-two million, three hundred three thousand, four hundred twenty-three".