1111123441 has 2 divisors, whose sum is σ = 1111123442. Its totient is φ = 1111123440.

The previous prime is 1111123379. The next prime is 1111123469. The reversal of 1111123441 is 1443211111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 713958400 + 397165041 = 26720^2 + 19929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111123441 is a prime.

It is a super-3 number, since 3×1111123441³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1111123471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555561720 + 555561721.

It is an arithmetic number, because the mean of its divisors is an integer number (555561721).

Almost surely, 2^1111123441 is an apocalyptic number.

It is an amenable number.

1111123441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111123441 is an equidigital number, since it uses as much as digits as its factorization.

1111123441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 19.

The square root of 1111123441 is about 33333.5182811536. The cubic root of 1111123441 is about 1035.7479998203.

Adding to 1111123441 its reverse (1443211111), we get a palindrome (2554334552).

The spelling of 1111123441 in words is "one billion, one hundred eleven million, one hundred twenty-three thousand, four hundred forty-one".