1123420441 has 16 divisors (see below), whose sum is σ = 1377210240. Its totient is φ = 901739520.

The previous prime is 1123420427. The next prime is 1123420447. The reversal of 1123420441 is 1440243211.

It is a happy number.

It is not a de Polignac number, because 1123420441 - 2¹⁷ = 1123289369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123420447) 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 15 ways as a sum of consecutive naturals, for example, 167496 + ... + 174073.

It is an arithmetic number, because the mean of its divisors is an integer number (86075640).

Almost surely, 2^1123420441 is an apocalyptic number.

1123420441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1123420441 is a deficient number, since it is larger than the sum of its proper divisors (253789799).

1123420441 is a wasteful number, since it uses less digits than its factorization.

1123420441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341616.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1123420441 is about 33517.4647161745. The cubic root of 1123420441 is about 1039.5549257409.

Adding to 1123420441 its reverse (1440243211), we get a palindrome (2563663652).

The spelling of 1123420441 in words is "one billion, one hundred twenty-three million, four hundred twenty thousand, four hundred forty-one".