22123421403 has 8 divisors (see below), whose sum is σ = 29506272768. Its totient is φ = 14744758824.

The previous prime is 22123421377. The next prime is 22123421413. The reversal of 22123421403 is 30412432122.

It is a happy number.

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

It is not a de Polignac number, because 22123421403 - 2⁶ = 22123421339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22123421413) 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, 1034851 + ... + 1056012.

It is an arithmetic number, because the mean of its divisors is an integer number (3688284096).

Almost surely, 2^22123421403 is an apocalyptic number.

22123421403 is a deficient number, since it is larger than the sum of its proper divisors (7382851365).

22123421403 is a wasteful number, since it uses less digits than its factorization.

22123421403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094393.

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

Adding to 22123421403 its reverse (30412432122), we get a palindrome (52535853525).

The spelling of 22123421403 in words is "twenty-two billion, one hundred twenty-three million, four hundred twenty-one thousand, four hundred three".