1020200323331 has 16 divisors (see below), whose sum is σ = 1218688187904. Its totient is φ = 835026935424.

The previous prime is 1020200323229. The next prime is 1020200323339. The reversal of 1020200323331 is 1333230020201.

It is a cyclic number.

It is not a de Polignac number, because 1020200323331 - 2¹⁰ = 1020200322307 is a prime.

It is a super-2 number, since 2×1020200323331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020200323339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5247401 + ... + 5438346.

It is an arithmetic number, because the mean of its divisors is an integer number (76168011744).

Almost surely, 2^{1020200323331} is an apocalyptic number.

1020200323331 is a deficient number, since it is larger than the sum of its proper divisors (198487864573).

1020200323331 is a wasteful number, since it uses less digits than its factorization.

1020200323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10686370.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1020200323331 its reverse (1333230020201), we get a palindrome (2353430343532).

The spelling of 1020200323331 in words is "one trillion, twenty billion, two hundred million, three hundred twenty-three thousand, three hundred thirty-one".