102020321033 has 4 divisors (see below), whose sum is σ = 104508621588. Its totient is φ = 99532020480.

The previous prime is 102020321023. The next prime is 102020321041. The reversal of 102020321033 is 330123020201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330123020201 = 13 ⋅25394078477.

It can be written as a sum of positive squares in 2 ways, for example, as 54492832969 + 47527488064 = 233437^2 + 218008^2 .

It is a cyclic number.

It is not a de Polignac number, because 102020321033 - 2⁴ = 102020321017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102020321023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244150216 + ... + 1244150297.

It is an arithmetic number, because the mean of its divisors is an integer number (26127155397).

Almost surely, 2^102020321033 is an apocalyptic number.

It is an amenable number.

102020321033 is a deficient number, since it is larger than the sum of its proper divisors (2488300555).

102020321033 is an equidigital number, since it uses as much as digits as its factorization.

102020321033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488300554.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 102020321033 its reverse (330123020201), we get a palindrome (432143341234).

The spelling of 102020321033 in words is "one hundred two billion, twenty million, three hundred twenty-one thousand, thirty-three".