423123213013 has 4 divisors (see below), whose sum is σ = 423147449088. Its totient is φ = 423098976940.

The previous prime is 423123213011. The next prime is 423123213041. The reversal of 423123213013 is 310312321324.

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 a cyclic number.

It is not a de Polignac number, because 423123213013 - 2¹ = 423123213011 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 (423123213011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12091831 + ... + 12126772.

It is an arithmetic number, because the mean of its divisors is an integer number (105786862272).

Almost surely, 2^423123213013 is an apocalyptic number.

It is an amenable number.

423123213013 is a deficient number, since it is larger than the sum of its proper divisors (24236075).

423123213013 is a wasteful number, since it uses less digits than its factorization.

423123213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24236074.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 423123213013 its reverse (310312321324), we get a palindrome (733435534337).

The spelling of 423123213013 in words is "four hundred twenty-three billion, one hundred twenty-three million, two hundred thirteen thousand, thirteen".