23446113421 has 4 divisors (see below), whose sum is σ = 23471136892. Its totient is φ = 23421089952.

The previous prime is 23446113389. The next prime is 23446113433. The reversal of 23446113421 is 12431164432.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12080208100 + 11365905321 = 109910^2 + 106611^2 .

It is a cyclic number.

It is not a de Polignac number, because 23446113421 - 2⁵ = 23446113389 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 (23446113721) 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, 12510330 + ... + 12512203.

It is an arithmetic number, because the mean of its divisors is an integer number (5867784223).

Almost surely, 2^23446113421 is an apocalyptic number.

It is an amenable number.

23446113421 is a deficient number, since it is larger than the sum of its proper divisors (25023471).

23446113421 is an equidigital number, since it uses as much as digits as its factorization.

23446113421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25023470.

The product of its digits is 13824, while the sum is 31.

Adding to 23446113421 its reverse (12431164432), we get a palindrome (35877277853).

The spelling of 23446113421 in words is "twenty-three billion, four hundred forty-six million, one hundred thirteen thousand, four hundred twenty-one".