2243134121 has 4 divisors (see below), whose sum is σ = 2244707472. Its totient is φ = 2241560772.

The previous prime is 2243134111. The next prime is 2243134123. The reversal of 2243134121 is 1214313422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243134121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243134123) 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, 784535 + ... + 787388.

It is an arithmetic number, because the mean of its divisors is an integer number (561176868).

Almost surely, 2^2243134121 is an apocalyptic number.

It is an amenable number.

2243134121 is a deficient number, since it is larger than the sum of its proper divisors (1573351).

2243134121 is a wasteful number, since it uses less digits than its factorization.

2243134121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573350.

The product of its digits is 1152, while the sum is 23.

The square root of 2243134121 is about 47361.7368874918. The cubic root of 2243134121 is about 1309.0364728830.

Adding to 2243134121 its reverse (1214313422), we get a palindrome (3457447543).

The spelling of 2243134121 in words is "two billion, two hundred forty-three million, one hundred thirty-four thousand, one hundred twenty-one".