1103130123312 has 160 divisors (see below), whose sum is σ = 3280584029184. Its totient is φ = 312891264000.

The previous prime is 1103130123299. The next prime is 1103130123317. The reversal of 1103130123312 is 2133210313011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1103130123317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30496437 + ... + 30532587.

Almost surely, 2^{1103130123312} is an apocalyptic number.

1103130123312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103130123312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1640292014592).

1103130123312 is an abundant number, since it is smaller than the sum of its proper divisors (2177453905872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1103130123312 is a wasteful number, since it uses less digits than its factorization.

1103130123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36827 (or 36821 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1103130123312 its reverse (2133210313011), we get a palindrome (3236340436323).

The spelling of 1103130123312 in words is "one trillion, one hundred three billion, one hundred thirty million, one hundred twenty-three thousand, three hundred twelve".