23404130421 has 32 divisors (see below), whose sum is σ = 35946086400. Its totient is φ = 13267938240.

The previous prime is 23404130389. The next prime is 23404130459. The reversal of 23404130421 is 12403140432.

It is not a de Polignac number, because 23404130421 - 2⁵ = 23404130389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23404130391 and 23404130400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404130921) 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, 6533851 + ... + 6537431.

It is an arithmetic number, because the mean of its divisors is an integer number (1123315200).

Almost surely, 2^23404130421 is an apocalyptic number.

23404130421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23404130421 is a deficient number, since it is larger than the sum of its proper divisors (12541955979).

23404130421 is a wasteful number, since it uses less digits than its factorization.

23404130421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5969.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23404130421 its reverse (12403140432), we get a palindrome (35807270853).

It can be divided in two parts, 234041 and 30421, that added together give a palindrome (264462).

The spelling of 23404130421 in words is "twenty-three billion, four hundred four million, one hundred thirty thousand, four hundred twenty-one".