1020331320201 has 12 divisors (see below), whose sum is σ = 1509758539380. Its totient is φ = 663630126720.

The previous prime is 1020331320181. The next prime is 1020331320209. The reversal of 1020331320201 is 1020231330201.

1020331320201 is a `hidden beast` number, since 10 + 2 + 0 + 331 + 320 + 2 + 0 + 1 = 666.

1020331320201 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 173289038400 + 847042281801 = 416280^2 + 920349^2 .

It is not a de Polignac number, because 1020331320201 - 2¹⁰ = 1020331319177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020331320209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1382562396 + ... + 1382563133.

It is an arithmetic number, because the mean of its divisors is an integer number (125813211615).

Almost surely, 2^{1020331320201} is an apocalyptic number.

It is an amenable number.

1020331320201 is a deficient number, since it is larger than the sum of its proper divisors (489427219179).

1020331320201 is a wasteful number, since it uses less digits than its factorization.

1020331320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765125576 (or 2765125573 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1020331320201 its reverse (1020231330201), we get a palindrome (2040562650402).

The spelling of 1020331320201 in words is "one trillion, twenty billion, three hundred thirty-one million, three hundred twenty thousand, two hundred one".