12103003020312 has 96 divisors (see below), whose sum is σ = 35195974238880. Its totient is φ = 3743541365760.

The previous prime is 12103003020281. The next prime is 12103003020389. The reversal of 12103003020312 is 21302030030121.

12103003020312 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 300 + 30 + 20 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69547423 + ... + 69721230.

It is an arithmetic number, because the mean of its divisors is an integer number (366624731655).

Almost surely, 2^{12103003020312} is an apocalyptic number.

12103003020312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12103003020312 is an abundant number, since it is smaller than the sum of its proper divisors (23092971218568).

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

12103003020312 is a wasteful number, since it uses less digits than its factorization.

12103003020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139268753 (or 139268746 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12103003020312 its reverse (21302030030121), we get a palindrome (33405033050433).

The spelling of 12103003020312 in words is "twelve trillion, one hundred three billion, three million, twenty thousand, three hundred twelve".