1123431110 has 16 divisors (see below), whose sum is σ = 2037614832. Its totient is φ = 445941600.

The previous prime is 1123431109. The next prime is 1123431137. The reversal of 1123431110 is 111343211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427481 + ... + 430100.

It is an arithmetic number, because the mean of its divisors is an integer number (127350927).

Almost surely, 2^1123431110 is an apocalyptic number.

1123431110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123431110 is a deficient number, since it is larger than the sum of its proper divisors (914183722).

1123431110 is a wasteful number, since it uses less digits than its factorization.

1123431110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857719.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1123431110 is about 33517.6238716291. The cubic root of 1123431110 is about 1039.5582165766.

Adding to 1123431110 its reverse (111343211), we get a palindrome (1234774321).

The spelling of 1123431110 in words is "one billion, one hundred twenty-three million, four hundred thirty-one thousand, one hundred ten".