1111440023 has 2 divisors, whose sum is σ = 1111440024. Its totient is φ = 1111440022.

The previous prime is 1111439999. The next prime is 1111440041. The reversal of 1111440023 is 3200441111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111440023 - 2¹⁶ = 1111374487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111439983 and 1111440010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111440223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555720011 + 555720012.

It is an arithmetic number, because the mean of its divisors is an integer number (555720012).

Almost surely, 2^1111440023 is an apocalyptic number.

1111440023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111440023 is an equidigital number, since it uses as much as digits as its factorization.

1111440023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1111440023 is about 33338.2666466030. The cubic root of 1111440023 is about 1035.8463591397.

Adding to 1111440023 its reverse (3200441111), we get a palindrome (4311881134).

The spelling of 1111440023 in words is "one billion, one hundred eleven million, four hundred forty thousand, twenty-three".