1023231111 has 16 divisors (see below), whose sum is σ = 1641273600. Its totient is φ = 553929408.

The previous prime is 1023231089. The next prime is 1023231119. The reversal of 1023231111 is 1111323201.

It is a happy number.

It is not a de Polignac number, because 1023231111 - 2⁶ = 1023231047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023231119) 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 in 15 ways as a sum of consecutive naturals, for example, 1281846 + ... + 1282643.

It is an arithmetic number, because the mean of its divisors is an integer number (102579600).

Almost surely, 2^1023231111 is an apocalyptic number.

1023231111 is a deficient number, since it is larger than the sum of its proper divisors (618042489).

1023231111 is a wasteful number, since it uses less digits than its factorization.

1023231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564518.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1023231111 is about 31987.9838533159. The cubic root of 1023231111 is about 1007.6845008527.

Adding to 1023231111 its reverse (1111323201), we get a palindrome (2134554312).

The spelling of 1023231111 in words is "one billion, twenty-three million, two hundred thirty-one thousand, one hundred eleven".