1103123012 has 6 divisors (see below), whose sum is σ = 1930465278. Its totient is φ = 551561504.

The previous prime is 1103122997. The next prime is 1103123017. The reversal of 1103123012 is 2103213011.

It can be written as a sum of positive squares in only one way, i.e., 642419716 + 460703296 = 25346^2 + 21464^2 .

It is not an unprimeable number, because it can be changed into a prime (1103123017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137890373 + ... + 137890380.

It is an arithmetic number, because the mean of its divisors is an integer number (321744213).

Almost surely, 2^1103123012 is an apocalyptic number.

It is an amenable number.

1103123012 is a deficient number, since it is larger than the sum of its proper divisors (827342266).

1103123012 is a wasteful number, since it uses less digits than its factorization.

1103123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275780757 (or 275780755 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1103123012 is about 33213.2957112058. The cubic root of 1103123012 is about 1033.2561085080.

Adding to 1103123012 its reverse (2103213011), we get a palindrome (3206336023).

It can be divided in two parts, 11031 and 23012, that added together give a palindrome (34043).

The spelling of 1103123012 in words is "one billion, one hundred three million, one hundred twenty-three thousand, twelve".