1020202112321 has 16 divisors (see below), whose sum is σ = 1169140482048. Its totient is φ = 872063139600.

The previous prime is 1020202112263. The next prime is 1020202112341. The reversal of 1020202112321 is 1232112020201.

It is a cyclic number.

It is not a de Polignac number, because 1020202112321 - 2¹⁸ = 1020201850177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020202112321.

It is not an unprimeable number, because it can be changed into a prime (1020202112341) 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, 25800956 + ... + 25840466.

It is an arithmetic number, because the mean of its divisors is an integer number (73071280128).

Almost surely, 2^{1020202112321} is an apocalyptic number.

It is an amenable number.

1020202112321 is a deficient number, since it is larger than the sum of its proper divisors (148938369727).

1020202112321 is an equidigital number, since it uses as much as digits as its factorization.

1020202112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49532.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1020202112321 its reverse (1232112020201), we get a palindrome (2252314132522).

The spelling of 1020202112321 in words is "one trillion, twenty billion, two hundred two million, one hundred twelve thousand, three hundred twenty-one".