204220321201123 has 4 divisors (see below), whose sum is σ = 204220487403360. Its totient is φ = 204220154998888.

The previous prime is 204220321201063. The next prime is 204220321201177. The reversal of 204220321201123 is 321102123022402.

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 204220321201123 - 2⁹ = 204220321200611 is a prime.

It is a super-2 number, since 2×204220321201123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204220321201723) 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, 81244168 + ... + 83720101.

It is an arithmetic number, because the mean of its divisors is an integer number (51055121850840).

Almost surely, 2^{204220321201123} is an apocalyptic number.

204220321201123 is a deficient number, since it is larger than the sum of its proper divisors (166202237).

204220321201123 is a wasteful number, since it uses less digits than its factorization.

204220321201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166202236.

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

Adding to 204220321201123 its reverse (321102123022402), we get a palindrome (525322444223525).

The spelling of 204220321201123 in words is "two hundred four trillion, two hundred twenty billion, three hundred twenty-one million, two hundred one thousand, one hundred twenty-three".