623413212340423 has 4 divisors (see below), whose sum is σ = 623416019377320. Its totient is φ = 623410405303528.

The previous prime is 623413212340421. The next prime is 623413212340439. The reversal of 623413212340423 is 324043212314326.

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 623413212340423 - 2¹ = 623413212340421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623413212340421) 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, 1403185288 + ... + 1403629501.

It is an arithmetic number, because the mean of its divisors is an integer number (155854004844330).

Almost surely, 2^{623413212340423} is an apocalyptic number.

623413212340423 is a deficient number, since it is larger than the sum of its proper divisors (2807036897).

623413212340423 is a wasteful number, since it uses less digits than its factorization.

623413212340423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807036896.

The product of its (nonzero) digits is 497664, while the sum is 40.

Adding to 623413212340423 its reverse (324043212314326), we get a palindrome (947456424654749).

The spelling of 623413212340423 in words is "six hundred twenty-three trillion, four hundred thirteen billion, two hundred twelve million, three hundred forty thousand, four hundred twenty-three".