23420003321 has 32 divisors (see below), whose sum is σ = 28378861056. Its totient is φ = 19044000000.

The previous prime is 23420003303. The next prime is 23420003323. The reversal of 23420003321 is 12330002432.

It is a cyclic number.

It is not a de Polignac number, because 23420003321 - 2¹⁰ = 23420002297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23420003293 and 23420003302.

It is not an unprimeable number, because it can be changed into a prime (23420003323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 661571 + ... + 696071.

It is an arithmetic number, because the mean of its divisors is an integer number (886839408).

Almost surely, 2^23420003321 is an apocalyptic number.

It is an amenable number.

23420003321 is a deficient number, since it is larger than the sum of its proper divisors (4958857735).

23420003321 is a wasteful number, since it uses less digits than its factorization.

23420003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34673.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23420003321 its reverse (12330002432), we get a palindrome (35750005753).

The spelling of 23420003321 in words is "twenty-three billion, four hundred twenty million, three thousand, three hundred twenty-one".