2201311231 has 10 divisors (see below), whose sum is σ = 2568046432. Its totient is φ = 1886836140.

The previous prime is 2201311213. The next prime is 2201311241. The reversal of 2201311231 is 1321131022.

It is not a de Polignac number, because 2201311231 - 2⁹ = 2201310719 is a prime.

It is a super-2 number, since 2×2201311231² = 9691542271453470722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201311241) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 456015 + ... + 460816.

Almost surely, 2^2201311231 is an apocalyptic number.

2201311231 is a deficient number, since it is larger than the sum of its proper divisors (366735201).

2201311231 is an frugal number, since it uses more digits than its factorization.

2201311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916859 (or 916838 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2201311231 is about 46918.1332855432. The cubic root of 2201311231 is about 1300.8497858099.

Adding to 2201311231 its reverse (1321131022), we get a palindrome (3522442253).

The spelling of 2201311231 in words is "two billion, two hundred one million, three hundred eleven thousand, two hundred thirty-one".