2228331031 has 4 divisors (see below), whose sum is σ = 2288556232. Its totient is φ = 2168105832.

The previous prime is 2228331023. The next prime is 2228331047. The reversal of 2228331031 is 1301338222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1301338222 = 2 ⋅650669111.

It is a cyclic number.

It is not a de Polignac number, because 2228331031 - 2³ = 2228331023 is a prime.

It is a super-2 number, since 2×2228331031² = 9930918367435045922, 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 = 2228330987 and 2228331005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228331071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30112545 + ... + 30112618.

It is an arithmetic number, because the mean of its divisors is an integer number (572139058).

Almost surely, 2^2228331031 is an apocalyptic number.

2228331031 is a deficient number, since it is larger than the sum of its proper divisors (60225201).

2228331031 is an equidigital number, since it uses as much as digits as its factorization.

2228331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60225200.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2228331031 is about 47205.2013129909. The cubic root of 2228331031 is about 1306.1505452511.

Adding to 2228331031 its reverse (1301338222), we get a palindrome (3529669253).

The spelling of 2228331031 in words is "two billion, two hundred twenty-eight million, three hundred thirty-one thousand, thirty-one".