103111323030012 has 192 divisors, whose sum is σ = 270273625509888. Its totient is φ = 30325634304000.

The previous prime is 103111323029993. The next prime is 103111323030077. The reversal of 103111323030012 is 210030323111301.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2882521687 + ... + 2882557457.

It is an arithmetic number, because the mean of its divisors is an integer number (1407675132864).

Almost surely, 2^{103111323030012} is an apocalyptic number.

103111323030012 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 103111323030012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135136812754944).

103111323030012 is an abundant number, since it is smaller than the sum of its proper divisors (167162302479876).

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

103111323030012 is a wasteful number, since it uses less digits than its factorization.

103111323030012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39040 (or 39038 counting only the distinct ones).

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

Adding to 103111323030012 its reverse (210030323111301), we get a palindrome (313141646141313).

The spelling of 103111323030012 in words is "one hundred three trillion, one hundred eleven billion, three hundred twenty-three million, thirty thousand, twelve".