1203131220112 has 40 divisors (see below), whose sum is σ = 2337511592312. Its totient is φ = 599903539200.

The previous prime is 1203131220073. The next prime is 1203131220163. The reversal of 1203131220112 is 2110221313021.

It can be written as a sum of positive squares in 4 ways, for example, as 116024709376 + 1087106510736 = 340624^2 + 1042644^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1203131220112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17998912 + ... + 18065632.

Almost surely, 2^{1203131220112} is an apocalyptic number.

It is an amenable number.

1203131220112 is a deficient number, since it is larger than the sum of its proper divisors (1134380372200).

1203131220112 is a wasteful number, since it uses less digits than its factorization.

1203131220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69827 (or 69821 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1203131220112 its reverse (2110221313021), we get a palindrome (3313352533133).

The spelling of 1203131220112 in words is "one trillion, two hundred three billion, one hundred thirty-one million, two hundred twenty thousand, one hundred twelve".