423523254331 has 4 divisors (see below), whose sum is σ = 423552706632. Its totient is φ = 423493802032.

The previous prime is 423523254289. The next prime is 423523254361. The reversal of 423523254331 is 133452325324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423523254331 is a prime.

It is a super-2 number, since 2×423523254331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423523254361) 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, 14704570 + ... + 14733343.

It is an arithmetic number, because the mean of its divisors is an integer number (105888176658).

Almost surely, 2^423523254331 is an apocalyptic number.

423523254331 is a deficient number, since it is larger than the sum of its proper divisors (29452301).

423523254331 is a wasteful number, since it uses less digits than its factorization.

423523254331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29452300.

The product of its digits is 259200, while the sum is 37.

Adding to 423523254331 its reverse (133452325324), we get a palindrome (556975579655).

The spelling of 423523254331 in words is "four hundred twenty-three billion, five hundred twenty-three million, two hundred fifty-four thousand, three hundred thirty-one".