1302020330331 has 16 divisors (see below), whose sum is σ = 2021465528064. Its totient is φ = 729973661664.

The previous prime is 1302020330251. The next prime is 1302020330357. The reversal of 1302020330331 is 1330330202031.

It is not a de Polignac number, because 1302020330331 - 2¹⁴ = 1302020313947 is a prime.

It is a super-2 number, since 2×1302020330331² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1302020330298 and 1302020330307.

It is not an unprimeable number, because it can be changed into a prime (1302020330131) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 584913681 + ... + 584915906.

It is an arithmetic number, because the mean of its divisors is an integer number (126341595504).

Almost surely, 2^{1302020330331} is an apocalyptic number.

1302020330331 is a deficient number, since it is larger than the sum of its proper divisors (719445197733).

1302020330331 is a wasteful number, since it uses less digits than its factorization.

1302020330331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169829650.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 1302020330331 its reverse (1330330202031), we get a palindrome (2632350532362).

The spelling of 1302020330331 in words is "one trillion, three hundred two billion, twenty million, three hundred thirty thousand, three hundred thirty-one".