1103112231 has 16 divisors (see below), whose sum is σ = 1617659904. Its totient is φ = 664393824.

The previous prime is 1103112217. The next prime is 1103112299. The reversal of 1103112231 is 1322113011.

It is a happy number.

It is not a de Polignac number, because 1103112231 - 2¹⁸ = 1102850087 is a prime.

It is a super-2 number, since 2×1103112231² = 2433713188363594722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1103112231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103112211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299071 + ... + 302736.

It is an arithmetic number, because the mean of its divisors is an integer number (101103744).

Almost surely, 2^1103112231 is an apocalyptic number.

1103112231 is a deficient number, since it is larger than the sum of its proper divisors (514547673).

1103112231 is a wasteful number, since it uses less digits than its factorization.

1103112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601870.

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

The square root of 1103112231 is about 33213.1334113480. The cubic root of 1103112231 is about 1033.2527424372.

Adding to 1103112231 its reverse (1322113011), we get a palindrome (2425225242).

The spelling of 1103112231 in words is "one billion, one hundred three million, one hundred twelve thousand, two hundred thirty-one".