103103100012 has 192 divisors, whose sum is σ = 301947125760. Its totient is φ = 26958873600.

The previous prime is 103103100011. The next prime is 103103100071. The reversal of 103103100012 is 210001301301.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (103103100011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1282713 + ... + 1360719.

It is an arithmetic number, because the mean of its divisors is an integer number (1572641280).

Almost surely, 2^103103100012 is an apocalyptic number.

103103100012 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 103103100012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150973562880).

103103100012 is an abundant number, since it is smaller than the sum of its proper divisors (198844025748).

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

103103100012 is a wasteful number, since it uses less digits than its factorization.

103103100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78092 (or 78090 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 103103100012 its reverse (210001301301), we get a palindrome (313104401313).

The spelling of 103103100012 in words is "one hundred three billion, one hundred three million, one hundred thousand, twelve".