423213545551 has 8 divisors (see below), whose sum is σ = 441627087744. Its totient is φ = 404801082840.

The previous prime is 423213545543. The next prime is 423213545563. The reversal of 423213545551 is 155545312324.

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

It is not a de Polignac number, because 423213545551 - 2³ = 423213545543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423213585551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589560 + ... + 1092706.

It is an arithmetic number, because the mean of its divisors is an integer number (55203385968).

Almost surely, 2^423213545551 is an apocalyptic number.

423213545551 is a deficient number, since it is larger than the sum of its proper divisors (18413542193).

423213545551 is a wasteful number, since it uses less digits than its factorization.

423213545551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539741.

The product of its digits is 360000, while the sum is 40.

Adding to 423213545551 its reverse (155545312324), we get a palindrome (578758857875).

The spelling of 423213545551 in words is "four hundred twenty-three billion, two hundred thirteen million, five hundred forty-five thousand, five hundred fifty-one".