1203011112012 has 24 divisors (see below), whose sum is σ = 2807185920000. Its totient is φ = 400980848016.

The previous prime is 1203011112001. The next prime is 1203011112013. The reversal of 1203011112012 is 2102111103021.

It is a junction number, because it is equal to n+sod(n) for n = 1203011111982 and 1203011112000.

It is not an unprimeable number, because it can be changed into a prime (1203011112013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2637012 + ... + 3059387.

It is an arithmetic number, because the mean of its divisors is an integer number (116966080000).

Almost surely, 2^{1203011112012} is an apocalyptic number.

1203011112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1203011112012 is an abundant number, since it is smaller than the sum of its proper divisors (1604174807988).

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

1203011112012 is a wasteful number, since it uses less digits than its factorization.

1203011112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714005 (or 5714003 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1203011112012 its reverse (2102111103021), we get a palindrome (3305122215033).

The spelling of 1203011112012 in words is "one trillion, two hundred three billion, eleven million, one hundred twelve thousand, twelve".