2243421031 has 4 divisors (see below), whose sum is σ = 2375386992. Its totient is φ = 2111455072.

The previous prime is 2243421023. The next prime is 2243421071. The reversal of 2243421031 is 1301243422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1301243422 = 2 ⋅650621711.

It is a cyclic number.

It is not a de Polignac number, because 2243421031 - 2³ = 2243421023 is a prime.

It is a super-2 number, since 2×2243421031² = 10065875844666205922, 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 = 2243420993 and 2243421011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243421001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65982955 + ... + 65982988.

It is an arithmetic number, because the mean of its divisors is an integer number (593846748).

Almost surely, 2^2243421031 is an apocalyptic number.

2243421031 is a deficient number, since it is larger than the sum of its proper divisors (131965961).

2243421031 is a wasteful number, since it uses less digits than its factorization.

2243421031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131965960.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2243421031 is about 47364.7657124998. The cubic root of 2243421031 is about 1309.0922816491.

Adding to 2243421031 its reverse (1301243422), we get a palindrome (3544664453).

The spelling of 2243421031 in words is "two billion, two hundred forty-three million, four hundred twenty-one thousand, thirty-one".