421253114393 has 4 divisors (see below), whose sum is σ = 443424330960. Its totient is φ = 399081897828.

The previous prime is 421253114383. The next prime is 421253114419. The reversal of 421253114393 is 393411352124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 421253114393 - 2¹⁸ = 421252852249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421253114333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11085608255 + ... + 11085608292.

It is an arithmetic number, because the mean of its divisors is an integer number (110856082740).

Almost surely, 2^421253114393 is an apocalyptic number.

It is an amenable number.

421253114393 is a deficient number, since it is larger than the sum of its proper divisors (22171216567).

421253114393 is a wasteful number, since it uses less digits than its factorization.

421253114393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22171216566.

The product of its digits is 77760, while the sum is 38.

The spelling of 421253114393 in words is "four hundred twenty-one billion, two hundred fifty-three million, one hundred fourteen thousand, three hundred ninety-three".