2204311231 has 4 divisors (see below), whose sum is σ = 2220401232. Its totient is φ = 2188221232.

The previous prime is 2204311217. The next prime is 2204311247. The reversal of 2204311231 is 1321134022.

It is a happy number.

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 2204311231 - 2¹⁷ = 2204180159 is a prime.

It is a super-2 number, since 2×2204311231² = 9717976006225470722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2204311199 and 2204311208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204311631) 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, 8044795 + ... + 8045068.

It is an arithmetic number, because the mean of its divisors is an integer number (555100308).

Almost surely, 2^2204311231 is an apocalyptic number.

2204311231 is a deficient number, since it is larger than the sum of its proper divisors (16090001).

2204311231 is a wasteful number, since it uses less digits than its factorization.

2204311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16090000.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2204311231 is about 46950.0929818036. The cubic root of 2204311231 is about 1301.4404607092.

Adding to 2204311231 its reverse (1321134022), we get a palindrome (3525445253).

The spelling of 2204311231 in words is "two billion, two hundred four million, three hundred eleven thousand, two hundred thirty-one".