1203131220120 has 128 divisors (see below), whose sum is σ = 4139806464000. Its totient is φ = 310485467520.

The previous prime is 1203131220073. The next prime is 1203131220163. The reversal of 1203131220120 is 210221313021.

1203131220120 is a `hidden beast` number, since 12 + 0 + 313 + 1 + 220 + 120 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1203131220093 and 1203131220102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17934430 + ... + 18001389.

It is an arithmetic number, because the mean of its divisors is an integer number (32342238000).

Almost surely, 2^{1203131220120} is an apocalyptic number.

1203131220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203131220120 is an abundant number, since it is smaller than the sum of its proper divisors (2936675243880).

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

1203131220120 is a wasteful number, since it uses less digits than its factorization.

1203131220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35935870 (or 35935860 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1203131220120 its reverse (210221313021), we get a palindrome (1413352533141).

The spelling of 1203131220120 in words is "one trillion, two hundred three billion, one hundred thirty-one million, two hundred twenty thousand, one hundred twenty".