23401143421 has 8 divisors (see below), whose sum is σ = 23730588000. Its totient is φ = 23072830032.

The previous prime is 23401143329. The next prime is 23401143427. The reversal of 23401143421 is 12434110432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23401143421 - 2¹¹ = 23401141373 is a prime.

It is a super-2 number, since 2×23401143421² (a number of 22 digits) contains 22 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 (23401143427) 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 7 ways as a sum of consecutive naturals, for example, 241090 + ... + 323923.

It is an arithmetic number, because the mean of its divisors is an integer number (2966323500).

Almost surely, 2^23401143421 is an apocalyptic number.

It is an amenable number.

23401143421 is a deficient number, since it is larger than the sum of its proper divisors (329444579).

23401143421 is an equidigital number, since it uses as much as digits as its factorization.

23401143421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565595.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 23401143421 its reverse (12434110432), we get a palindrome (35835253853).

The spelling of 23401143421 in words is "twenty-three billion, four hundred one million, one hundred forty-three thousand, four hundred twenty-one".