423513533155 has 4 divisors (see below), whose sum is σ = 508216239792. Its totient is φ = 338810826520.

The previous prime is 423513533153. The next prime is 423513533239. The reversal of 423513533155 is 551335315324.

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

It is not a de Polignac number, because 423513533155 - 2¹ = 423513533153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423513533153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42351353311 + ... + 42351353320.

It is an arithmetic number, because the mean of its divisors is an integer number (127054059948).

Almost surely, 2^423513533155 is an apocalyptic number.

423513533155 is a deficient number, since it is larger than the sum of its proper divisors (84702706637).

423513533155 is an equidigital number, since it uses as much as digits as its factorization.

423513533155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84702706636.

The product of its digits is 405000, while the sum is 40.

Adding to 423513533155 its reverse (551335315324), we get a palindrome (974848848479).

The spelling of 423513533155 in words is "four hundred twenty-three billion, five hundred thirteen million, five hundred thirty-three thousand, one hundred fifty-five".