220542234403 has 4 divisors (see below), whose sum is σ = 221081457880. Its totient is φ = 220003010928.

The previous prime is 220542234343. The next prime is 220542234431. The reversal of 220542234403 is 304432245022.

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 220542234403 - 2²⁵ = 220508679971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220542234433) 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, 269611125 + ... + 269611942.

It is an arithmetic number, because the mean of its divisors is an integer number (55270364470).

Almost surely, 2^220542234403 is an apocalyptic number.

220542234403 is a deficient number, since it is larger than the sum of its proper divisors (539223477).

220542234403 is an equidigital number, since it uses as much as digits as its factorization.

220542234403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539223476.

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 220542234403 its reverse (304432245022), we get a palindrome (524974479425).

The spelling of 220542234403 in words is "two hundred twenty billion, five hundred forty-two million, two hundred thirty-four thousand, four hundred three".