1123444441421 has 8 divisors (see below), whose sum is σ = 1127542652544. Its totient is φ = 1119351404160.

The previous prime is 1123444441411. The next prime is 1123444441423. The reversal of 1123444441421 is 1241444443211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123444441421 - 2¹⁰ = 1123444440397 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 (1123444441423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858131 + ... + 1727216.

It is an arithmetic number, because the mean of its divisors is an integer number (140942831568).

Almost surely, 2^{1123444441421} is an apocalyptic number.

It is an amenable number.

1123444441421 is a deficient number, since it is larger than the sum of its proper divisors (4098211123).

1123444441421 is a wasteful number, since it uses less digits than its factorization.

1123444441421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586931.

The product of its digits is 49152, while the sum is 35.

Adding to 1123444441421 its reverse (1241444443211), we get a palindrome (2364888884632).

The spelling of 1123444441421 in words is "one trillion, one hundred twenty-three billion, four hundred forty-four million, four hundred forty-one thousand, four hundred twenty-one".