23420433240413 has 4 divisors (see below), whose sum is σ = 25549563535008. Its totient is φ = 21291302945820.

The previous prime is 23420433240403. The next prime is 23420433240433. The reversal of 23420433240413 is 31404233402432.

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 23420433240413 - 2¹⁰ = 23420433239389 is a prime.

It is a super-3 number, since 3×23420433240413³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420433240403) 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, 1064565147281 + ... + 1064565147302.

It is an arithmetic number, because the mean of its divisors is an integer number (6387390883752).

Almost surely, 2^{23420433240413} is an apocalyptic number.

It is an amenable number.

23420433240413 is a deficient number, since it is larger than the sum of its proper divisors (2129130294595).

23420433240413 is a wasteful number, since it uses less digits than its factorization.

23420433240413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129130294594.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 23420433240413 its reverse (31404233402432), we get a palindrome (54824666642845).

The spelling of 23420433240413 in words is "twenty-three trillion, four hundred twenty billion, four hundred thirty-three million, two hundred forty thousand, four hundred thirteen".