23403403221424 has 30 divisors (see below), whose sum is σ = 46329388741124. Its totient is φ = 11452729218720.

The previous prime is 23403403221389. The next prime is 23403403221433. The reversal of 23403403221424 is 42412230430432.

It is a super-3 number, since 3×23403403221424³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23403403221424.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 331044942 + ... + 331115629.

Almost surely, 2^{23403403221424} is an apocalyptic number.

It is an amenable number.

23403403221424 is a deficient number, since it is larger than the sum of its proper divisors (22925985519700).

23403403221424 is an equidigital number, since it uses as much as digits as its factorization.

23403403221424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662160673 (or 662160620 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 23403403221424 its reverse (42412230430432), we get a palindrome (65815633651856).

The spelling of 23403403221424 in words is "twenty-three trillion, four hundred three billion, four hundred three million, two hundred twenty-one thousand, four hundred twenty-four".