220123204403 has 2 divisors, whose sum is σ = 220123204404. Its totient is φ = 220123204402.

The previous prime is 220123204397. The next prime is 220123204429. The reversal of 220123204403 is 304402321022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220123204403 - 2²⁴ = 220106427187 is a prime.

It is not a weakly prime, because it can be changed into another prime (220123204463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061602201 + 110061602202.

It is an arithmetic number, because the mean of its divisors is an integer number (110061602202).

Almost surely, 2^220123204403 is an apocalyptic number.

220123204403 is a deficient number, since it is larger than the sum of its proper divisors (1).

220123204403 is an equidigital number, since it uses as much as digits as its factorization.

220123204403 is an evil number, because the sum of its binary digits is even.

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

Adding to 220123204403 its reverse (304402321022), we get a palindrome (524525525425).

The spelling of 220123204403 in words is "two hundred twenty billion, one hundred twenty-three million, two hundred four thousand, four hundred three".