1123322421 has 16 divisors (see below), whose sum is σ = 1614595136. Its totient is φ = 690581376.

The previous prime is 1123322383. The next prime is 1123322423. The reversal of 1123322421 is 1242233211.

It is not a de Polignac number, because 1123322421 - 2¹⁵ = 1123289653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123322423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26346 + ... + 54228.

It is an arithmetic number, because the mean of its divisors is an integer number (100912196).

Almost surely, 2^1123322421 is an apocalyptic number.

It is an amenable number.

1123322421 is a deficient number, since it is larger than the sum of its proper divisors (491272715).

1123322421 is a wasteful number, since it uses less digits than its factorization.

1123322421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28932.

The product of its digits is 576, while the sum is 21.

The square root of 1123322421 is about 33516.0024615108. The cubic root of 1123322421 is about 1039.5246906559.

Adding to 1123322421 its reverse (1242233211), we get a palindrome (2365555632).

The spelling of 1123322421 in words is "one billion, one hundred twenty-three million, three hundred twenty-two thousand, four hundred twenty-one".