103312320012 has 36 divisors (see below), whose sum is σ = 284891550216. Its totient is φ = 31306763520.

The previous prime is 103312319969. The next prime is 103312320017. The reversal of 103312320012 is 210023213301.

103312320012 is a `hidden beast` number, since 1 + 0 + 331 + 2 + 320 + 0 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (103312320017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130444453 + ... + 130445244.

Almost surely, 2^103312320012 is an apocalyptic number.

103312320012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103312320012 is an abundant number, since it is smaller than the sum of its proper divisors (181579230204).

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

103312320012 is a wasteful number, since it uses less digits than its factorization.

103312320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260889718 (or 260889713 counting only the distinct ones).

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

Adding to 103312320012 its reverse (210023213301), we get a palindrome (313335533313).

It can be divided in two parts, 103312 and 320012, that added together give a palindrome (423324).

The spelling of 103312320012 in words is "one hundred three billion, three hundred twelve million, three hundred twenty thousand, twelve".