1020200330544 has 40 divisors (see below), whose sum is σ = 2635949411952. Its totient is φ = 340011048960.

The previous prime is 1020200330519. The next prime is 1020200330561. The reversal of 1020200330544 is 4450330020201.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 1445017 + ... + 2031864.

Almost surely, 2^{1020200330544} is an apocalyptic number.

It is an amenable number.

1020200330544 is an abundant number, since it is smaller than the sum of its proper divisors (1615749081408).

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

1020200330544 is a wasteful number, since it uses less digits than its factorization.

1020200330544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483005 (or 3482999 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 1020200330544 its reverse (4450330020201), we get a palindrome (5470530350745).

The spelling of 1020200330544 in words is "one trillion, twenty billion, two hundred million, three hundred thirty thousand, five hundred forty-four".