20401113222403 has 4 divisors (see below), whose sum is σ = 20401128910960. Its totient is φ = 20401097533848.

The previous prime is 20401113222361. The next prime is 20401113222437. The reversal of 20401113222403 is 30422231110402.

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

It is a cyclic number.

It is not a de Polignac number, because 20401113222403 - 2⁹ = 20401113221891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20401113222103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5697948 + ... + 8559721.

It is an arithmetic number, because the mean of its divisors is an integer number (5100282227740).

Almost surely, 2^{20401113222403} is an apocalyptic number.

20401113222403 is a deficient number, since it is larger than the sum of its proper divisors (15688557).

20401113222403 is a wasteful number, since it uses less digits than its factorization.

20401113222403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15688556.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20401113222403 its reverse (30422231110402), we get a palindrome (50823344332805).

The spelling of 20401113222403 in words is "twenty trillion, four hundred one billion, one hundred thirteen million, two hundred twenty-two thousand, four hundred three".