1103123231 has 12 divisors (see below), whose sum is σ = 1284625872. Its totient is φ = 944502048.

The previous prime is 1103123191. The next prime is 1103123233. The reversal of 1103123231 is 1323213011.

It is not a de Polignac number, because 1103123231 - 2⁶ = 1103123167 is a prime.

It is a super-2 number, since 2×1103123231² = 2433761725543758722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103123233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34886 + ... + 58508.

It is an arithmetic number, because the mean of its divisors is an integer number (107052156).

Almost surely, 2^1103123231 is an apocalyptic number.

1103123231 is a deficient number, since it is larger than the sum of its proper divisors (181502641).

1103123231 is an equidigital number, since it uses as much as digits as its factorization.

1103123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24590 (or 24583 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1103123231 is about 33213.2990080781. The cubic root of 1103123231 is about 1033.2561768845.

Adding to 1103123231 its reverse (1323213011), we get a palindrome (2426336242).

The spelling of 1103123231 in words is "one billion, one hundred three million, one hundred twenty-three thousand, two hundred thirty-one".