1123421241 has 4 divisors (see below), whose sum is σ = 1497894992. Its totient is φ = 748947492.

The previous prime is 1123421209. The next prime is 1123421263. The reversal of 1123421241 is 1421243211.

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 not a de Polignac number, because 1123421241 - 2⁵ = 1123421209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123421041) 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, 187236871 + ... + 187236876.

It is an arithmetic number, because the mean of its divisors is an integer number (374473748).

Almost surely, 2^1123421241 is an apocalyptic number.

It is an amenable number.

1123421241 is a deficient number, since it is larger than the sum of its proper divisors (374473751).

1123421241 is an equidigital number, since it uses as much as digits as its factorization.

1123421241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374473750.

The product of its digits is 384, while the sum is 21.

The square root of 1123421241 is about 33517.4766502492. The cubic root of 1123421241 is about 1039.5551725003. Note that the first 3 decimals are identical.

Adding to 1123421241 its reverse (1421243211), we get a palindrome (2544664452).

The spelling of 1123421241 in words is "one billion, one hundred twenty-three million, four hundred twenty-one thousand, two hundred forty-one".