421254141423 has 4 divisors (see below), whose sum is σ = 561672188568. Its totient is φ = 280836094280.

The previous prime is 421254141403. The next prime is 421254141449. The reversal of 421254141423 is 324141452124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421254141423 - 2⁸ = 421254141167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421254141403) 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 3 ways as a sum of consecutive naturals, for example, 70209023568 + ... + 70209023573.

It is an arithmetic number, because the mean of its divisors is an integer number (140418047142).

Almost surely, 2^421254141423 is an apocalyptic number.

421254141423 is a deficient number, since it is larger than the sum of its proper divisors (140418047145).

421254141423 is a wasteful number, since it uses less digits than its factorization.

421254141423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140418047144.

The product of its digits is 30720, while the sum is 33.

Adding to 421254141423 its reverse (324141452124), we get a palindrome (745395593547).

The spelling of 421254141423 in words is "four hundred twenty-one billion, two hundred fifty-four million, one hundred forty-one thousand, four hundred twenty-three".