1331203300020 has 144 divisors (see below), whose sum is σ = 4636918802880. Its totient is φ = 305730892800.

The previous prime is 1331203300003. The next prime is 1331203300067. The reversal of 1331203300020 is 200033021331.

1331203300020 is a `hidden beast` number, since 1 + 3 + 312 + 0 + 330 + 0 + 0 + 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 = 1331203299966 and 1331203300002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17655141 + ... + 17730380.

It is an arithmetic number, because the mean of its divisors is an integer number (32200825020).

Almost surely, 2^{1331203300020} is an apocalyptic number.

1331203300020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331203300020 is an abundant number, since it is smaller than the sum of its proper divisors (3305715502860).

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

1331203300020 is a wasteful number, since it uses less digits than its factorization.

1331203300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35385566 (or 35385561 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 1331203300020 its reverse (200033021331), we get a palindrome (1531236321351).

The spelling of 1331203300020 in words is "one trillion, three hundred thirty-one billion, two hundred three million, three hundred thousand, twenty".