22401232403 has 4 divisors (see below), whose sum is σ = 24437708088. Its totient is φ = 20364756720.

The previous prime is 22401232397. The next prime is 22401232423. The reversal of 22401232403 is 30423210422.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22401232403 - 2¹² = 22401228307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22401232423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018237826 + ... + 1018237847.

It is an arithmetic number, because the mean of its divisors is an integer number (6109427022).

Almost surely, 2^22401232403 is an apocalyptic number.

22401232403 is a deficient number, since it is larger than the sum of its proper divisors (2036475685).

22401232403 is a wasteful number, since it uses less digits than its factorization.

22401232403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036475684.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 22401232403 its reverse (30423210422), we get a palindrome (52824442825).

The spelling of 22401232403 in words is "twenty-two billion, four hundred one million, two hundred thirty-two thousand, four hundred three".