1331041020120 has 512 divisors, whose sum is σ = 5135187456000. Its totient is φ = 300375060480.

The previous prime is 1331041020109. The next prime is 1331041020137. The reversal of 1331041020120 is 210201401331.

1331041020120 is a `hidden beast` number, since 1 + 3 + 31 + 0 + 410 + 201 + 20 = 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 = 1331041020093 and 1331041020102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 715227990 + ... + 715229850.

It is an arithmetic number, because the mean of its divisors is an integer number (10029663000).

Almost surely, 2^{1331041020120} is an apocalyptic number.

1331041020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331041020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2567593728000).

1331041020120 is an abundant number, since it is smaller than the sum of its proper divisors (3804146435880).

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

1331041020120 is a wasteful number, since it uses less digits than its factorization.

1331041020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040 (or 3030 counting only the distinct ones).

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

Adding to 1331041020120 its reverse (210201401331), we get a palindrome (1541242421451).

The spelling of 1331041020120 in words is "one trillion, three hundred thirty-one billion, forty-one million, twenty thousand, one hundred twenty".